Resource splitting among different types of control information and uplink data for a transmission on an uplink shared channel

ABSTRACT

Methods, systems, and devices for wireless communications are described that support splitting resources among different types of control information and uplink data for transmission on an uplink shared channel. A base station may transmit a grant indicating resource elements (REs) of an uplink shared channel allocated to a user equipment (UE) for an uplink transmission. The UE may process the grant and split the granted REs between different types of uplink control information (UCI) and uplink data based on a reference payload size. The UE may generate an uplink transmission based on the splitting of the REs, and may transmit the uplink transmission in the REs of the uplink shared channel indicated in the grant. The base station may monitor the REs of the uplink shared channel for the uplink transmission in accordance with the splitting of the plurality of REs.

CROSS REFERENCES

The present application for Patent is a Continuation of U.S. patentapplication Ser. No. 16/250,691 by HUANG et al., entitled “RESOURCESPLITTING AMONG DIFFERENT TYPES OF CONTROL INFORMATION AND UPLINK DATAFOR A TRANSMISSION ON AN UPLINK SHARED CHANNEL” filed Jan. 17, 2019,which claims the benefit of U.S. Provisional Patent Application No.62/619,648 by HUANG, et al., entitled “RESOURCE SPLITTING AMONGDIFFERENT TYPES OF CONTROL INFORMATION AND UPLINK DATA FOR ATRANSMISSION ON AN UPLINK SHARED CHANNEL,” filed Jan. 19, 2018, assignedto the assignee hereof, and expressly incorporated herein.

BACKGROUND

The following relates generally to wireless communication, and morespecifically to resource splitting among different types of controlinformation and uplink data for a transmission on an uplink sharedchannel.

Wireless communications systems are widely deployed to provide varioustypes of communication content such as voice, video, packet data,messaging, broadcast, and so on. These systems may be capable ofsupporting communication with multiple users by sharing the availablesystem resources (e.g., time, frequency, and power). Examples of suchmultiple-access systems include fourth generation (4G) systems such asLong Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, orLTE-A Pro systems, and fifth generation (5G) systems which may bereferred to as New Radio (NR) systems. These systems may employtechnologies such as code division multiple access (CDMA), time divisionmultiple access (TDMA), frequency division multiple access (FDMA),orthogonal frequency division multiple access (OFDMA), or discreteFourier transform (DFT)-spread-orthogonal frequency divisionmultiplexing (OFDM) (DFT-S-OFDM). A wireless multiple-accesscommunications system may include a number of base stations or networkaccess nodes, each simultaneously supporting communication for multiplecommunication devices, which may be otherwise known as user equipment(UE).

A UE may send uplink control information (UCI) to inform a serving basestation about conditions of a wireless channel and other controlinformation for managing communication over the wireless channel. UCImay include different types of information, such as hybrid automaticrepeat request (HARQ) data, channel state information (CSI), or thelike. In a typical scenario, the UE transmits UCI within transmissionsent within a control channel (e.g., a physical uplink control channel(PUCCH)). In some cases, the UE may transmit UCI in a shared datachannel (e.g., a physical uplink shared channel (PUSCH)). Transmittingcontrol information, in an uplink shared channel may be referred toherein as piggybacking.

In conventional systems, a base station may send a grant allocatingresources of a PUSCH to the UE for sending UCI piggybacked on a PUSCHtransmission. Conventional techniques for allocating granted resourcesof the PUSCH among different types of UCI piggybacked on a PUSCHtransmission are inefficient.

SUMMARY

The described techniques relate to improved methods, systems, devices,or apparatuses that support splitting resources among different types ofcontrol information and uplink data for an uplink transmission on anuplink shared channel. Generally, the described techniques splitresource elements (REs) of an uplink transmission between differenttypes of control information and uplink data. In some example, thesplitting may relate to an improved distribution of allocated REsbetween different types of control information and uplink data, andreduce the probability of the entirety of the allocated REs beingallocated to a single UCI type. In some examples, the splitting the REsmay be in accordance with a reference payload size.

In an example, a base station may transmit a grant indicating a set ofREs of an uplink shared channel allocated to a UE for an uplinktransmission. The UE may use the allocation to send different types ofUCI such as feedback data (e.g., hybrid automatic repeat requestacknowledgement (HARQ-ACK), channel state information part 1 (CSIpart 1) data, and CSI part 2 data, or the like, and uplink data, such asuplink shared channel (UL-SCH) data, in an uplink transmission sentwithin an uplink shared channel. The UE may process the grant and splitthe granted REs between the different types of UCI data and optionallythe UL-SCH data. In an example, the REs may be split between HARQ-ACKdata, CSI part 1 data, CSI part 2 data, and optionally UL-SCH data. Aspart of the splitting, the UE may calculate a number of the REs toallocate to the HARQ-ACK data, a number of the REs to allocate to theCSI part 1 data, a number of the REs to allocate to the CSI part 2 data,and optionally a number of the REs to allocate to the UL-SCH data, whereeach of the HARQ-ACK data, CSI part 1 data, CSI part 2 data, andoptionally UL-SCH data is allocated distinct REs.

The calculation of how to split the REs may be based on weightingfactors dynamically signaled by the base station for respectivelyweighting a payload size of the HARQ-ACK data, CSI part 1 data, CSI part2 data, and optionally UL-SCH data. The weighting factors may be used tocontrol the priority of the different types of UCI and optionally UL-SCHrelative to one another. In some examples, a reference payload size maybe an indication that the CSI part 2 data is to have a payload of afixed size within the uplink transmission, and the reference payloadsize may reduce the likelihood that all of the REs are allocated to aparticular one of the UCI types, such as HARQ-ACK data. The UE may thengenerate an uplink transmission based on the splitting, and may transmitthe uplink transmission in the REs of the uplink shared channelindicated in the grant.

The base station may determine the splitting of the REs between HARQ-ACKdata, CSI part 1 data, CSI part 2 data, and optionally UL-SCH, using thesame calculation as applied by the UE. The base station may monitor theREs of the uplink shared channel indicated in the grant for the uplinktransmission in accordance with the splitting of the plurality of REs.In some examples, a reference payload size may provide an improveddistribution of allocated REs between different types of controlinformation and optionally UL-SCH data, and reduce the probability ofthe entirety of the granted REs being allocated to a single UCI type.

A method of wireless communication is described. The method may includereceiving, by a UE, a grant indicating a plurality of REs of an uplinkshared channel allocated to the UE for an uplink transmission, splittingat least a portion of the plurality of REs between HARQ-ACK data, CSIpart 1 data, and CSI part 2 data, generating the uplink transmissionbased at least in part on the splitting, and transmitting, by the UE,the uplink transmission in the plurality of REs of the uplink sharedchannel.

Another apparatus for wireless communication is described. The apparatusmay include a processor, memory in electronic communication with theprocessor, and instructions stored in the memory. The instructions maybe operable to cause the processor to receive, by a UE, a grantindicating a plurality of REs of an uplink shared channel allocated tothe UE for an uplink transmission, split at least a portion of theplurality of REs between HARQ-ACK data, CSI part 1 data, and CSI part 2data, generate the uplink transmission based at least in part on thesplitting, and transmit, by the UE, the uplink transmission in theplurality of REs of the uplink shared channel.

An apparatus for wireless communication is described. The apparatus mayinclude means for receiving, by a UE a grant indicating a plurality ofREs of an uplink shared channel allocated to the UE for an uplinktransmission, means for splitting at least a portion of the plurality ofREs between HARQ-ACK data, CSI part 1 data, and CSI part 2 data, meansfor generating the uplink transmission based at least in part on thesplitting, and means for transmitting, by the UE, the uplinktransmission in the plurality of REs of the uplink shared channel.

A non-transitory computer-readable medium for wireless communication isdescribed. The non-transitory computer-readable medium may includeinstructions operable to cause a processor to receive, by a UE, a grantindicating a plurality of REs of an uplink shared channel allocated tothe UE for an uplink transmission, split at least a portion of theplurality of REs between HARQ-ACK data, CSI part 1 data, and CSI part 2data, generate the uplink transmission based at least in part on thesplitting, and transmit, by the UE, the uplink transmission in theplurality of REs of the uplink shared channel.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for receiving radio resource control(RRC) signaling indicating an allocation cap parameter. Some examples ofthe method, apparatus, and non-transitory computer-readable mediumdescribed above may further include processes, features, means, orinstructions for setting a maximum number of the plurality of REs toallocate to the HARQ-ACK data based at least in part on the allocationcap parameter.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for calculating a number of theplurality of REs to allocate to the HARQ-ACK data may be based at leastin part on the maximum number.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for receiving RRC signaling indicatingan allocation cap parameter. Some examples of the method, apparatus, andnon-transitory computer-readable medium described above may furtherinclude processes, features, means, or instructions for setting amaximum number of the plurality of REs to allocate to the CSI part 1data based at least in part on the allocation cap parameter.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for calculating the number of theplurality of REs to allocate to the CSI part 1 data based at least inpart on the maximum number.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining a total number of theplurality of REs that may be available for allocation based at least inpart on a number of subcarriers associated with the grant and a numberof symbol periods associated with the grant.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for setting the total number of theplurality of REs that may be available for allocation as a maximumnumber of the plurality of REs that may be available to allocate to theHARQ-ACK data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: allocating a number of theplurality of REs to the HARQ-ACK data. Some examples of the method,apparatus, and non-transitory computer-readable medium described abovemay further include processes, features, means, or instructions foridentifying a remaining number of the plurality of REs that may beavailable for allocation based at least in part on determining that thenumber of the plurality of REs allocated to the HARQ-ACK data may beless than the total number of the plurality of REs that may be availablefor allocation. Some examples of the method, apparatus, andnon-transitory computer-readable medium described above may furtherinclude processes, features, means, or instructions for splitting theremaining number of the plurality of REs between the CSI part 1 data andthe CSI part 2 data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs to allocate to the HARQ-ACK data in proportion to aweighted payload size of the HARQ-ACK data relative to a function of theweighted payload size of the HARQ-ACK data, a weighted payload size ofthe CSI part 1 data, and/or a weighted payload size of a referencepayload size.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs to allocate to the CSI part 1 data in proportion to aweighted payload size of the CSI part 1 data relative to a function of aweighted payload size of the HARQ-ACK data, the weighted payload size ofthe CSI part 1 data, and/or a weighted payload size of a referencepayload size.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: receiving RRC signalingindicating a weighting factor for the HARQ-ACK data, a weighting factorfor the CSI part 1 data, and a weighting factor for the CSI part 2 data.Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining a weighted payload sizeof the HARQ-ACK data based at least on part on the weighting factor forthe HARQ-ACK data, a weighted payload size of the CSI part 1 data basedat least on part on the weighting factor for the CSI part 1 data, and aweighted payload size of a reference payload size based at least on parton the weighting factor for the CSI part 2 data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs to allocate to the CSI part 2 data based at least inpart on a number of the plurality of REs allocated to the HARQ-ACK dataand a number of the plurality of REs allocated to the CSI part 1 data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs includes calculating a number of theplurality of REs to allocate to the HARQ-ACK data in proportion to aweighted payload size of the HARQ-ACK data relative to a weightedpayload size of a reference payload size.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs includes calculating a number of theplurality of REs to allocate to the CSI part 1 data in proportion to aweighted payload size of the CSI part 1 data relative to a weightedpayload size of a reference payload size.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining a reference payloadsize based at least on part on a value of a rank indication.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for processing the grant to determinethat none of the plurality of REs may be allocated for transmission ofuplink data and that each of the plurality of REs may be allocated fortransmission of the HARQ-ACK data, or the CSI part 1 data, or the CSIpart 2 data.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for processing the grant to determinethat the uplink transmission may be to include non-access stratum dataand not to include access stratum data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs further comprises: splitting theplurality of REs between the HARQ-ACK data, the CSI part 1 data, the CSIpart 2 data, and uplink data. In some examples, the splitting may bebased at least in part on a reference payload size of the CSI part 2data.

A method of wireless communication is described. The method may includetransmitting, by a base station, a grant indicating a plurality of REsof an uplink shared channel allocated to a UE for an uplinktransmission, splitting at least a portion of the plurality of REsbetween HARQ-ACK data, CSI part 1 data, and CSI part 2 data, andmonitoring the plurality of REs of the uplink shared channel for theuplink transmission based at least in part on the splitting.

An apparatus for wireless communication is described. The apparatus mayinclude means for transmitting, by a base station, a grant indicating aplurality of REs of an uplink shared channel allocated to a UE for anuplink transmission, means for splitting at least a portion of theplurality of REs between HARQ-ACK data, CSI part 1 data, and CSI part 2data, and means for monitoring the plurality of r REs of the uplinkshared channel for the uplink transmission based at least in part on thesplitting.

Another apparatus for wireless communication is described. The apparatusmay include a processor, memory in electronic communication with theprocessor, and instructions stored in the memory. The instructions maybe operable to cause the processor to transmit, by a base station, agrant indicating a plurality of REs of an uplink shared channelallocated to a UE for an uplink transmission, split at least a portionof the plurality of REs between HARQ-ACK data, CSI part 1 data, and CSIpart 2 data, and monitor the plurality of REs of the uplink sharedchannel for the uplink transmission based at least in part on thesplitting.

A non-transitory computer-readable medium for wireless communication isdescribed. The non-transitory computer-readable medium may includeinstructions operable to cause a processor to transmit, by a basestation, a grant indicating a plurality of REs of an uplink sharedchannel allocated to a UE for an uplink transmission, split at least aportion of the plurality of REs between HARQ-ACK data, CSI part 1 data,and CSI part 2 data, and monitor the plurality of REs of the uplinkshared channel for the uplink transmission based at least in part on thesplitting.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for transmitting RRC signalingindicating a first allocation cap parameter.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include setting amaximum number of the plurality of REs available to allocate to theHARQ-ACK data based at least in part on the first allocation capparameter.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include calculatinga number of the plurality of REs allocated to the HARQ-ACK data based atleast in part on the maximum number of the plurality of REs available toallocate to the HARQ-ACK data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs may include: setting a maximum number ofthe plurality of REs available to allocate to the CSI part 1 data basedat least in part on the first allocation cap parameter.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs may include calculating a number of theplurality of REs allocated to the CSI part 1 data based at least in parton the maximum number of the plurality of REs available to allocate tothe CSI part 1 data.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining a total number of theplurality of REs that may be available for allocation based at least inpart on a number of subcarriers associated with the grant and a numberof symbol periods associated with the grant.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs includes: splitting the plurality of REsbetween the HARQ-ACK data, the CSI part 1 data, and the CSI part 2 databased at least in part on the total number of the plurality of REs thatmay be available for allocation.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the total number of theplurality of REs that may be available for allocation excludes REs ofthe plurality of REs assigned to at least one reference signal.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, transmitting the grant furthercomprises: generating the grant to indicate that none of the totalnumber of the plurality of REs may be allocated for transmission ofuplink data and that each of total number of the plurality of REs may beallocated for transmission of the HARQ-ACK data, the CSI part 1 data, orthe CSI part 2 data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, transmitting the grant furthercomprises: generating the grant to indicate that the uplink transmissionmay be to include non-access stratum data and not to include accessstratum data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs allocated to the HARQ-ACK data in proportion to aweighted payload size of the HARQ-ACK data relative to a function of theweighted payload size of the HARQ-ACK data, a weighted payload size ofthe CSI part 1 data, and a weighted payload size of a reference payloadsize.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs allocated to the CSI part 1 data in proportion to aweighted payload size of the CSI part 1 data relative to a function of aweighted payload size of the HARQ-ACK data, the weighted payload size ofthe CSI part 1 data, and a weighted payload size of a reference payloadsize.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of the plurality ofREs comprises: transmitting RRC signaling indicating a weighting factorfor the HARQ-ACK data, a weighting factor for the CSI part 1 data, and aweighting factor for the CSI part 2 data. Some examples of the method,apparatus, and non-transitory computer-readable medium described abovemay further include processes, features, means, or instructions fordetermining a weighted payload size of the HARQ-ACK data based at leaston part on the weighting factor for the HARQ-ACK data, a weightedpayload size of the CSI part 1 data based at least on part on theweighting factor for the CSI part 1 data, and a weighted payload size ofa reference payload size based at least on part on the weighting factorfor the CSI part 2 data.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting of at least aportion of the plurality of REs comprises: calculating a number of theplurality of REs allocated to the CSI part 2 data based at least in parton a number of the plurality of REs allocated to the HARQ-ACK data and anumber of the plurality of REs allocated to the CSI part 1 data.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining a reference payloadsize based at least on part on a value of a rank indication.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, splitting at least a portionof the plurality of REs further includes: splitting the plurality of REsbetween the HARQ-ACK data, the CSI part 1 data, the CSI part 2 data, anduplink data. In some examples, such splitting may be based at least inpart on a reference payload size of the CSI part 2 data.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example of a system for wireless communicationthat supports resource splitting among different types of controlinformation and uplink data for a transmission on an uplink sharedchannel in accordance with aspects of the present disclosure.

FIG. 2 illustrates an example of a wireless communications system thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure.

FIGS. 3A and 3B illustrate examples of example time and frequencyresource diagrams that supports resource splitting among different typesof control information and uplink data for a transmission on an uplinkshared channel in accordance with aspects of the present disclosure.

FIG. 4 illustrates an example of an example time and frequency resourcediagram that supports resource splitting among different types ofcontrol information and uplink data for a transmission on an uplinkshared channel in accordance with aspects of the present disclosure.

FIG. 5 illustrates an example of a process flow that supports resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure.

FIGS. 6 through 8 show block diagrams of a device that supports resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure.

FIG. 9 illustrates a block diagram of a system including a UE thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure.

FIGS. 10 through 12 show block diagrams of a device that supportsresource splitting among different types of control information anduplink data for a transmission on an uplink shared channel in accordancewith aspects of the present disclosure.

FIG. 13 illustrates a block diagram of a system including a base stationthat supports resource splitting among different types of controlinformation and uplink data for a transmission on an uplink sharedchannel in accordance with aspects of the present disclosure.

FIGS. 14 through 17 illustrate methods for resource splitting amongdifferent types of control information and uplink data for atransmission on an uplink shared channel in accordance with aspects ofthe present disclosure.

DETAILED DESCRIPTION

The described techniques relate to improved methods, systems, devices,or apparatuses that support splitting resources among different types ofcontrol information and optionally UL-SCH data for an uplinktransmission on an uplink shared channel. Generally, the describedtechniques split REs of an uplink transmission between different typesof control information and optionally UL-SCH data. In some examples, acalculation performed to split the granted REs among the different typesof control information and optionally UL-SCH data may be a function of areference payload size. Beneficially, the techniques described hereinmay result in an improved distribution of allocated REs betweendifferent types of control information and optionally UL-SCH, and reducethe probability of the entirety of the allocated REs being allocated toa single UCI type.

In an example, a base station may transmit downlink signaling thatsignals one or more parameters and a grant indicating an uplink resourceallocation to a UE. The grant may allocate one or more resource blocksto the UE for an uplink transmission (e.g., a transmission in a PUSCH).Each resource block may correspond to a set of REs. The downlinksignaling may further include an indication of a calculation method forsplitting resources of an uplink resource allocation among a set ofdifferent UCI types and optionally UL-SCH data. The one or moreparameters may include weighting factors for each UCI type andoptionally UL-SCH data. The UE may receive the downlink signaling,identify the method for calculating the split, and process the weightingfactors and the grant. In some examples, the UE may determine that itdoes not have any UL-SCH data from a medium access control (MAC) layerto send in the uplink transmission. In some examples, the grant mayindicate that the UE is not to send any UL-SCH data within the one ormore allocated resource blocks. In some examples, the grant may instructthe UE to send the HARQ-ACK and CSI data payloads in the one or moreallocated resource blocks, with or without UL-SCH data.

In some examples, CSI may include different parts, and the UE may sendthe one or more CSI parts in a PUSCH transmission within the one or moreallocated resource blocks. For example, CSI part 1 may include one ormore of a rank indicator (RI), CSI reference signal index (CRI), achannel quality indicator (CQI) for a first continuous wave (CW), or thelike, or any combination thereof. CSI part 2 may include PrecodingMatrix Indicator (PMI), CQI for a second CW such as wideband andsub-band signaling, or the like, or any combination thereof. In somecases, the CQI part 2 may include wideband CQI, subband CQI, or both.Wideband CQI may be CQI corresponding to a bandwidth range in whichfrequency resources may be allocated to the UE for an uplinktransmission. Subband CQI may correspond to a portion of the bandwidthrange.

The UE may calculate a split of the number of REs of the one or moreallocated resource blocks to respectively allocate to each of HARQ-ACK,CSI part 1, CSI part 2, and optionally UL-SCH. The calculations may bebased on the received weighting factors for each UCI type and optionallyUL-SCH, and a reference payload size for CSI part 2. In some cases, thesplit calculation may be based on a set of transfer equations thatdetermine the number of REs to allocate to each UCI type and optionallyUL-SCH. In some cases, the transfer equations may cap the number of REsthat can be allocated to a particular type of UCI. In some examples, theweighting factors of the UCI types may be dynamically determined by thebase station, and signaled (e.g., on a slot to slot basis) to the UE in,for example, downlink control information (DCI). In another examples,the base station may use Radio Resource Control (RRC) signaling toinform the UE.

Following determination of the split of the allocated REs amongHARQ-ACK, CSI part 1, CSI part 2, and optionally UL-SCH, the UE may mapthe HARQ-ACK data, CSI part 1 data, CSI part 2 data, and optionallyUL-SCH data in accordance with the determined split.

The UE may then generate and transmit an uplink transmission (e.g., aPUSCH transmission) within the REs of the uplink shared channel (e.g.,PUSCH) indicated in the grant. For example, the UE may map the REs forHARQ-ACK, CSI part 1, CSI part 2, and optionally UL-SCH in accordancewith a mapping pattern corresponding to the respective calculatednumbers of v for each UCI type and optionally UL-SCH. The base stationmay configure the UE with a set of mapping patterns, the UE may locallystore the mapping patterns, or both. The UE may then generate an uplinktransmission in accordance with the split and transmit the uplinktransmission within the REs allocated in the grant.

The base station may calculate the resource split of the uplink resourceallocation, in the same manner as the UE determined the resource split.The base station may similarly determine the mapping patterncorresponding to the split, and which of the allocated REs are expectedto respectively include HARQ-ACK data, CSI part 1 data, CSI part 2 data,and optionally UL-SCH data. The base station may then attempt to decodecoded modulation symbols of the uplink shared channel corresponding tothe allocation indicated in the grant and the calculated resource split.The base station may, for example, identify the coded modulation symbolsof the uplink shared channel that are expected to include cyclicredundancy check (CRC) bits. The base station may determine thatdecoding is successful if data obtained from symbols of the shared datachannel passes error detection (e.g., satisfies a cyclic redundancycheck). The base station may provide positive acknowledgement (ACK) or anegative ACK (NACK) to the UE following successful or unsuccessfuldecoding of the REs allocated in the grant.

Aspects of the disclosure are initially described in the context of awireless communications system. Aspects of the disclosure are furtherillustrated by and described with reference to apparatus diagrams,system diagrams, and flowcharts that relate to resource splitting amongdifferent types of control information and uplink data for atransmission on an uplink shared channel.

FIG. 1 illustrates an example of a wireless communications system 100 inaccordance with various aspects of the present disclosure. The wirelesscommunications system 100 includes base stations 105, UEs 115, and acore network 130. In some examples, the wireless communications system100 may be a LTE, an LTE-A network, an LTE-A Pro network, or a NRnetwork. In some cases, wireless communications system 100 may supportenhanced broadband communications, ultra-reliable (e.g., missioncritical) communications, low latency communications, or communicationswith low-cost and low-complexity devices.

Base stations 105 may wirelessly communicate with UEs 115 via one ormore base station antennas. Base stations 105 described herein mayinclude or may be referred to by those skilled in the art as a basetransceiver station, a radio base station, an access point, a radiotransceiver, a NodeB, an eNodeB (eNB), a next-generation Node B orgiga-nodeB (either of which may be referred to as a gNB), a Home NodeB,a Home eNodeB, or some other suitable terminology. Wirelesscommunications system 100 may include base stations 105 of differenttypes (e.g., macro or small cell base stations). The UEs 115 describedherein may be able to communicate with various types of base stations105 and network equipment including macro eNBs, small cell eNBs, gNBs,relay base stations, and the like.

Each base station 105 may be associated with a particular geographiccoverage area 110 in which communications with various UEs 115 issupported. Each base station 105 may provide communication coverage fora respective geographic coverage area 110 via communication links 125,and communication links 125 between a base station 105 and a UE 115 mayutilize one or more carriers. Communication links 125 shown in wirelesscommunications system 100 may include uplink transmissions from a UE 115to a base station 105, or downlink transmissions from a base station 105to a UE 115. Downlink transmissions may also be called forward linktransmissions while uplink transmissions may also be called reverse linktransmissions.

The geographic coverage area 110 for a base station 105 may be dividedinto sectors making up only a portion of the geographic coverage area110, and each sector may be associated with a cell. For example, eachbase station 105 may provide communication coverage for a macro cell, asmall cell, a hot spot, or other types of cells, or various combinationsthereof. In some examples, a base station 105 may be movable andtherefore provide communication coverage for a moving geographiccoverage area 110. In some examples, different geographic coverage areas110 associated with different technologies may overlap, and overlappinggeographic coverage areas 110 associated with different technologies maybe supported by the same base station 105 or by different base stations105. The wireless communications system 100 may include, for example, aheterogeneous LTE/LTE-A/LTE-A Pro or NR network in which different typesof base stations 105 provide coverage for various geographic coverageareas 110.

The term “cell” refers to a logical communication entity used forcommunication with a base station 105 (e.g., over a carrier), and may beassociated with an identifier for distinguishing neighboring cells(e.g., a physical cell identifier (PCID), a virtual cell identifier(VCID)) operating via the same or a different carrier. In some examples,a carrier may support multiple cells, and different cells may beconfigured according to different protocol types (e.g., machine-typecommunication (MTC), narrowband Internet-of-Things (NB-IoT), enhancedmobile broadband (eMBB), or others) that may provide access fordifferent types of devices. In some cases, the term “cell” may refer toa portion of a geographic coverage area 110 (e.g., a sector) over whichthe logical entity operates.

UEs 115 may be dispersed throughout the wireless communications system100, and each UE 115 may be stationary or mobile. A UE 115 may also bereferred to as a mobile device, a wireless device, a remote device, ahandheld device, or a subscriber device, or some other suitableterminology, where the “device” may also be referred to as a unit, astation, a terminal, or a client. A UE 115 may also be a personalelectronic device such as a cellular phone, a personal digital assistant(PDA), a tablet computer, a laptop computer, or a personal computer. Insome examples, a UE 115 may also refer to a wireless local loop (WLL)station, an Internet of Things (IoT) device, an Internet of Everything(IoE) device, or an MTC device, or the like, which may be implemented invarious articles such as appliances, vehicles, meters, or the like.

Some UEs 115, such as MTC or IoT devices, may be low cost or lowcomplexity devices, and may provide for automated communication betweenmachines (e.g., via Machine-to-Machine (M2M) communication). M2Mcommunication or MTC may refer to data communication technologies thatallow devices to communicate with one another or a base station 105without human intervention. In some examples, M2M communication or MTCmay include communications from devices that integrate sensors or metersto measure or capture information and relay that information to acentral server or application program that can make use of theinformation or present the information to humans interacting with theprogram or application. Some UEs 115 may be designed to collectinformation or enable automated behavior of machines. Examples ofapplications for MTC devices include smart metering, inventorymonitoring, water level monitoring, equipment monitoring, healthcaremonitoring, wildlife monitoring, weather and geological eventmonitoring, fleet management and tracking, remote security sensing,physical access control, and transaction-based business charging.

Some UEs 115 may be configured to employ operating modes that reducepower consumption, such as half-duplex communications (e.g., a mode thatsupports one-way communication via transmission or reception, but nottransmission and reception simultaneously). In some examples half-duplexcommunications may be performed at a reduced peak rate. Other powerconservation techniques for UEs 115 include entering a power saving“deep sleep” mode when not engaging in active communications, oroperating over a limited bandwidth (e.g., according to narrowbandcommunications). In some cases, UEs 115 may be designed to supportcritical functions (e.g., mission critical functions), and a wirelesscommunications system 100 may be configured to provide ultra-reliablecommunications for these functions.

In some cases, a UE 115 may also be able to communicate directly withother UEs 115 (e.g., using a peer-to-peer (P2P) or device-to-device(D2D) protocol). One or more of a group of UEs 115 utilizing D2Dcommunications may be within the geographic coverage area 110 of a basestation 105. Other UEs 115 in such a group may be outside the geographiccoverage area 110 of a base station 105, or be otherwise unable toreceive transmissions from a base station 105. In some cases, groups ofUEs 115 communicating via D2D communications may utilize a one-to-many(1:M) system in which each UE 115 transmits to every other UE 115 in thegroup. In some cases, a base station 105 facilitates the scheduling ofresources for D2D communications. In some cases, D2D communications arecarried out between UEs 115 without the involvement of a base station105.

Base stations 105 may communicate with the core network 130 and with oneanother. For example, base stations 105 may interface with the corenetwork 130 through backhaul links 132 (e.g., via an Si or otherinterface). Base stations 105 may communicate with one another overbackhaul links 134 (e.g., via an X2 or other interface) either directly(e.g., directly between base stations 105) or indirectly (e.g., via corenetwork 130).

The core network 130 may provide user authentication, accessauthorization, tracking, Internet Protocol (IP) connectivity, and otheraccess, routing, or mobility functions. The core network 130 may be anevolved packet core (EPC), which may include at least one mobilitymanagement entity (MME), at least one serving gateway (S-GW), and atleast one Packet Data Network (PDN) gateway (P-GW). The MME may managenon-access stratum (e.g., control plane) functions such as mobility,authentication, and bearer management for UEs 115 served by basestations 105 associated with the EPC. User IP packets may be transferredthrough the S-GW, which itself may be connected to the P-GW. The P-GWmay provide IP address allocation as well as other functions. The P-GWmay be connected to the network operators IP services. The operators IPservices may include access to the Internet, Intranet(s), an IPMultimedia Subsystem (IMS), or a Packet-Switched (PS) Streaming Service.

At least some of the network devices, such as a base station 105, mayinclude subcomponents such as an access network entity, which may be anexample of an access node controller (ANC). Each access network entitymay communicate with UEs 115 through a number of other access networktransmission entities, which may be referred to as a radio head, a smartradio head, or a transmission/reception point (TRP). In someconfigurations, various functions of each access network entity or basestation 105 may be distributed across various network devices (e.g.,radio heads and access network controllers) or consolidated into asingle network device (e.g., a base station 105).

Wireless communications system 100 may operate using one or morefrequency bands, typically in the range of 300 MHz to 300 GHz.Generally, the region from 300 MHz to 3 GHz is known as the ultra-highfrequency (UHF) region or decimeter band, since the wavelengths rangefrom approximately one decimeter to one meter in length. UHF waves maybe blocked or redirected by buildings and environmental features.However, the waves may penetrate structures sufficiently for a macrocell to provide service to UEs 115 located indoors. Transmission of UHFwaves may be associated with smaller antennas and shorter range (e.g.,less than 100 km) compared to transmission using the smaller frequenciesand longer waves of the high frequency (HF) or very high frequency (VHF)portion of the spectrum below 300 MHz.

Wireless communications system 100 may also operate in a super highfrequency (SHF) region using frequency bands from 3 GHz to 30 GHz, alsoknown as the centimeter band. The SHF region includes bands such as the5 GHz industrial, scientific, and medical (ISM) bands, which may be usedopportunistically by devices that can tolerate interference from otherusers.

Wireless communications system 100 may also operate in an extremely highfrequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz),also known as the millimeter band. In some examples, wirelesscommunications system 100 may support millimeter wave (mmW)communications between UEs 115 and base stations 105, and EHF antennasof the respective devices may be even smaller and more closely spacedthan UHF antennas. In some cases, this may facilitate use of antennaarrays within a UE 115. However, the propagation of EHF transmissionsmay be subject to even greater atmospheric attenuation and shorter rangethan SHF or UHF transmissions. Techniques disclosed herein may beemployed across transmissions that use one or more different frequencyregions, and designated use of bands across these frequency regions maydiffer by country or regulating body.

In some cases, wireless communications system 100 may utilize bothlicensed and unlicensed radio frequency spectrum bands. For example,wireless communications system 100 may employ License Assisted Access(LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technologyin an unlicensed band such as the 5 GHz ISM band. When operating inunlicensed radio frequency spectrum bands, wireless devices such as basestations 105 and UEs 115 may employ listen-before-talk (LBT) proceduresto ensure a frequency channel is clear before transmitting data. In somecases, operations in unlicensed bands may be based on a CA configurationin conjunction with CCs operating in a licensed band (e.g., LAA).Operations in unlicensed spectrum may include downlink transmissions,uplink transmissions, peer-to-peer transmissions, or a combination ofthese. Duplexing in unlicensed spectrum may be based on frequencydivision duplexing (FDD), time division duplexing (TDD), or acombination of both.

In some examples, base station 105 or UE 115 may be equipped withmultiple antennas, which may be used to employ techniques such astransmit diversity, receive diversity, multiple-input multiple-output(MIMO) communications, or beamforming. For example, wirelesscommunications system 100 may use a transmission scheme between atransmitting device (e.g., a base station 105) and a receiving device(e.g., a UE 115), where the transmitting device is equipped withmultiple antennas and the receiving devices are equipped with one ormore antennas. MIMO communications may employ multipath signalpropagation to increase the spectral efficiency by transmitting orreceiving multiple signals via different spatial layers, which may bereferred to as spatial multiplexing. The multiple signals may, forexample, be transmitted by the transmitting device via differentantennas or different combinations of antennas. Likewise, the multiplesignals may be received by the receiving device via different antennasor different combinations of antennas. Each of the multiple signals maybe referred to as a separate spatial stream, and may carry bitsassociated with the same data stream (e.g., the same codeword) ordifferent data streams. Different spatial layers may be associated withdifferent antenna ports used for channel measurement and reporting. MIMOtechniques include single-user MIMO (SU-MIMO) where multiple spatiallayers are transmitted to the same receiving device, and multiple-userMIMO (MU-MIMO) where multiple spatial layers are transmitted to multipledevices.

Beamforming, which may also be referred to as spatial filtering,directional transmission, or directional reception, is a signalprocessing technique that may be used at a transmitting device or areceiving device (e.g., a base station 105 or a UE 115) to shape orsteer an antenna beam (e.g., a transmit beam or receive beam) along aspatial path between the transmitting device and the receiving device.Beamforming may be achieved by combining the signals communicated viaantenna elements of an antenna array such that signals propagating atparticular orientations with respect to an antenna array experienceconstructive interference while others experience destructiveinterference. The adjustment of signals communicated via the antennaelements may include a transmitting device or a receiving deviceapplying certain amplitude and phase offsets to signals carried via eachof the antenna elements associated with the device. The adjustmentsassociated with each of the antenna elements may be defined by abeamforming weight set associated with a particular orientation (e.g.,with respect to the antenna array of the transmitting device orreceiving device, or with respect to some other orientation).

In one example, a base station 105 may use multiple antennas or antennaarrays to conduct beamforming operations for directional communicationswith a UE 115. For instance, some signals (e.g. synchronization signals,reference signals, beam selection signals, or other control signals) maybe transmitted by a base station 105 multiple times in differentdirections, which may include a signal being transmitted according todifferent beamforming weight sets associated with different directionsof transmission. Transmissions in different beam directions may be usedto identify (e.g., by the base station 105 or a receiving device, suchas a UE 115) a beam direction for subsequent transmission and/orreception by the base station 105. Some signals, such as data signalsassociated with a particular receiving device, may be transmitted by abase station 105 in a single beam direction (e.g., a directionassociated with the receiving device, such as a UE 115). In someexamples, the beam direction associated with transmissions along asingle beam direction may be determined based at least in part on asignal that was transmitted in different beam directions. For example, aUE 115 may receive one or more of the signals transmitted by the basestation 105 in different directions, and the UE 115 may report to thebase station 105 an indication of the signal it received with a highestsignal quality, or an otherwise acceptable signal quality. Althoughthese techniques are described with reference to signals transmitted inone or more directions by a base station 105, a UE 115 may employsimilar techniques for transmitting signals multiple times in differentdirections (e.g., for identifying a beam direction for subsequenttransmission or reception by the UE 115), or transmitting a signal in asingle direction (e.g., for transmitting data to a receiving device).

A receiving device (e.g., a UE 115, which may be an example of a mmWreceiving device) may try multiple receive beams when receiving varioussignals from the base station 105, such as synchronization signals,reference signals, beam selection signals, or other control signals. Forexample, a receiving device may try multiple receive directions byreceiving via different antenna subarrays, by processing receivedsignals according to different antenna subarrays, by receiving accordingto different receive beamforming weight sets applied to signals receivedat a plurality of antenna elements of an antenna array, or by processingreceived signals according to different receive beamforming weight setsapplied to signals received at a plurality of antenna elements of anantenna array, any of which may be referred to as “listening” accordingto different receive beams or receive directions. In some examples areceiving device may use a single receive beam to receive along a singlebeam direction (e.g., when receiving a data signal). The single receivebeam may be aligned in a beam direction determined based at least inpart on listening according to different receive beam directions (e.g.,a beam direction determined to have a highest signal strength, highestsignal-to-noise ratio, or otherwise acceptable signal quality based atleast in part on listening according to multiple beam directions).

In some cases, the antennas of a base station 105 or UE 115 may belocated within one or more antenna arrays, which may support MIMOoperations, or transmit or receive beamforming. For example, one or morebase station antennas or antenna arrays may be co-located at an antennaassembly, such as an antenna tower. In some cases, antennas or antennaarrays associated with a base station 105 may be located in diversegeographic locations. A base station 105 may have an antenna array witha number of rows and columns of antenna ports that the base station 105may use to support beamforming of communications with a UE 115.Likewise, a UE 115 may have one or more antenna arrays that may supportvarious MIMO or beamforming operations.

In some cases, wireless communications system 100 may be a packet-basednetwork that operate according to a layered protocol stack. In the userplane, communications at the bearer or Packet Data Convergence Protocol(PDCP) layer may be IP-based. A Radio Link Control (RLC) layer may insome cases perform packet segmentation and reassembly to communicateover logical channels. A MAC layer may perform priority handling andmultiplexing of logical channels into transport channels. The MAC layermay also use HARQ to provide retransmission at the MAC layer to improvelink efficiency. In the control plane, the RRC protocol layer mayprovide establishment, configuration, and maintenance of an RRCconnection between a UE 115 and a base station 105 or core network 130supporting radio bearers for user plane data. At the Physical (PHY)layer, transport channels may be mapped to physical channels.

In some cases, UEs 115 and base stations 105 may support retransmissionsof data to increase the likelihood that data is received successfully.HARQ feedback is one technique of increasing the likelihood that data isreceived correctly over a communication link 125. HARQ may include acombination of error detection (e.g., using a CRC), forward errorcorrection (FEC), and retransmission (e.g., automatic repeat request(ARQ)). HARQ may improve throughput at the MAC layer in poor radioconditions (e.g., signal-to-noise conditions). In some cases, a wirelessdevice may support same-slot HARQ feedback, where the device may provideHARQ feedback in a specific slot for data received in a previous symbolin the slot. In some cases, the device may provide HARQ feedback in asubsequent slot, or according to some other time interval.

Time intervals in LTE or NR may be expressed in multiples of a basictime unit, which may, for example, refer to a sampling period ofT_(s)=1/30,720,000 seconds. Time intervals of a communications resourcemay be organized according to radio frames each having a duration of 10milliseconds (ms), where the frame period may be expressed asT_(f)=307,200 T_(s). The radio frames may be identified by a systemframe number (SFN) ranging from 0 to 1023. Each frame may include 10subframes numbered from 0 to 9, and each subframe may have a duration of1 ms. A subframe may be further divided into 2 slots each having aduration of 0.5 ms, and each slot may contain 6 or 7 modulation symbolperiods (e.g., depending on the length of the cyclic prefix prepended toeach symbol period). Excluding the cyclic prefix, each symbol period maycontain 2048 sampling periods. In some cases a subframe may be thesmallest scheduling unit of the wireless communications system 100, andmay be referred to as a transmission time interval (TTI). In some cases,a smallest scheduling unit of the wireless communications system 100 maybe shorter than a subframe or may be dynamically selected (e.g., inbursts of shortened TTIs (sTTIs) or in selected component carriers usingsTTIs).

In some wireless communications systems, a slot may further be dividedinto multiple mini-slots containing one or more symbols. In someinstances, a symbol of a mini-slot or a mini-slot may be the smallestunit of scheduling. Each symbol may vary in duration depending on thesubcarrier spacing or frequency band of operation, for example. Further,some wireless communications systems may implement slot aggregation inwhich multiple slots or mini-slots are aggregated together and used forcommunication between a UE 115 and a base station 105.

The term “carrier” refers to a set of radio frequency spectrum resourceshaving a defined physical layer structure for supporting communicationsover a communication link 125. For example, a carrier of a communicationlink 125 may include a portion of a radio frequency spectrum band thatis operated according to physical layer channels for a given radioaccess technology. Each physical layer channel may carry user data,control information, or other signaling. A carrier may be associatedwith a pre-defined frequency channel (e.g., an E-UTRA absolute radiofrequency channel number (EARFCN)), and may be positioned according to achannel raster for discovery by UEs 115. Carriers may be downlink oruplink (e.g., in an FDD mode), or be configured to carry downlink anduplink communications (e.g., in a TDD mode). In some examples, signalwaveforms transmitted over a carrier may be made up of multiplesub-carriers (e.g., using multi-carrier modulation (MCM) techniques suchas OFDM or DFT-s-OFDM).

The organizational structure of the carriers may be different fordifferent radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR,etc.). For example, communications over a carrier may be organizedaccording to TTIs or slots, each of which may include user data as wellas control information or signaling to support decoding the user data. Acarrier may also include dedicated acquisition signaling (e.g.,synchronization signals or system information, etc.) and controlsignaling that coordinates operation for the carrier. In some examples(e.g., in a carrier aggregation configuration), a carrier may also haveacquisition signaling or control signaling that coordinates operationsfor other carriers. In some examples, the signaling may be RRCsignaling.

Physical channels may be multiplexed on a carrier according to varioustechniques. A physical control channel and a physical data channel maybe multiplexed on a downlink carrier, for example, using time divisionmultiplexing (TDM) techniques, frequency division multiplexing (FDM)techniques, or hybrid TDM-FDM techniques. In some examples, controlinformation transmitted in a physical control channel may be distributedbetween different control regions in a cascaded manner (e.g., between acommon control region or common search space and one or more UE-specificcontrol regions or UE-specific search spaces).

A carrier may be associated with a particular bandwidth of the radiofrequency spectrum, and in some examples the carrier bandwidth may bereferred to as a “system bandwidth” of the carrier or the wirelesscommunications system 100. For example, the carrier bandwidth may be oneof a number of predetermined bandwidths for carriers of a particularradio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). Insome examples, each served UE 115 may be configured for operating overportions or all of the carrier bandwidth. In other examples, some UEs115 may be configured for operation using a narrowband protocol typethat is associated with a predefined portion or range (e.g., set ofsubcarriers or RBs) within a carrier (e.g., “in-band” deployment of anarrowband protocol type).

In a system employing MCM techniques, a resource element may consist ofone symbol period (e.g., a duration of one modulation symbol) and onesubcarrier, where the symbol period and subcarrier spacing are inverselyrelated. The number of bits carried by each resource element may dependon the modulation scheme (e.g., the order of the modulation scheme).Thus, the more REs that a UE 115 receives and the higher the order ofthe modulation scheme, the higher the data rate may be for the UE 115.In MIMO systems, a wireless communications resource may refer to acombination of a radio frequency spectrum resource, a time resource, anda spatial resource (e.g., spatial layers), and the use of multiplespatial layers may further increase the data rate for communicationswith a UE 115.

Devices of the wireless communications system 100 (e.g., base stations105 or UEs 115) may have a hardware configuration that supportscommunications over a particular carrier bandwidth, or may beconfigurable to support communications over one of a set of carrierbandwidths. In some examples, the wireless communications system 100 mayinclude base stations 105 and/or UEs that can support simultaneouscommunications via carriers associated with more than one differentcarrier bandwidth.

Wireless communications system 100 may support communication with a UE115 on multiple cells or carriers, a feature which may be referred to ascarrier aggregation (CA) or multi-carrier operation. A UE 115 may beconfigured with multiple downlink CCs and one or more uplink CCsaccording to a carrier aggregation configuration. Carrier aggregationmay be used with both FDD and TDD component carriers.

In some cases, wireless communications system 100 may utilize enhancedcomponent carriers (eCCs). An eCC may be characterized by one or morefeatures including wider carrier or frequency channel bandwidth, shortersymbol duration, shorter TTI duration, or modified control channelconfiguration. In some cases, an eCC may be associated with a carrieraggregation configuration or a dual connectivity configuration (e.g.,when multiple serving cells have a suboptimal or non-ideal backhaullink). An eCC may also be configured for use in unlicensed spectrum orshared spectrum (e.g., where more than one operator is allowed to usethe spectrum). An eCC characterized by wide carrier bandwidth mayinclude one or more segments that may be utilized by UEs 115 that arenot capable of monitoring the whole carrier bandwidth or are otherwiseconfigured to use a limited carrier bandwidth (e.g., to conserve power).

In some cases, an eCC may utilize a different symbol duration than otherCCs, which may include use of a reduced symbol duration as compared withsymbol durations of the other CCs. A shorter symbol duration may beassociated with increased spacing between adjacent subcarriers. Adevice, such as a UE 115 or base station 105, utilizing eCCs maytransmit wideband signals (e.g., according to frequency channel orcarrier bandwidths of 20, 40, 60, 80 MHz, etc.) at reduced symboldurations (e.g., 16.67 microseconds). A TTI in eCC may consist of one ormultiple symbol periods. In some cases, the TTI duration (that is, thenumber of symbol periods in a TTI) may be variable.

Wireless communications systems such as an NR system may utilize anycombination of licensed, shared, and unlicensed spectrum bands, amongothers. The flexibility of eCC symbol duration and subcarrier spacingmay allow for the use of eCC across multiple spectrums. In someexamples, NR shared spectrum may increase spectrum utilization andspectral efficiency, specifically through dynamic vertical (e.g., acrossfrequency) and horizontal (e.g., across time) sharing of resources.

A UE 115 and a base station 105 may establish a connection forexchanging uplink and downlink transmissions. The UE 115 and the basestation 105 provide acknowledgement feedback to let one another knowwhether a transmission passed error detection or if a prior transmissionshould be retransmitted. For uplink transmissions, the base station 105may grant the UE 115 resources within an uplink shared channel (e.g., aPUSCH), and the UE 115 may piggyback UCI, such as ACK/NACK data, CSIdata, or the like, on a transmission sent within the allocated PUSCHresources.

In an example, a UE 115 may receive and process downlink signaling froma serving base station 105 (e.g., DCI indication, RRC signaling) thatindicates one or more parameters and includes a grant of resourceswithin the uplink shared channel for an uplink transmission. The grantmay indicate a set of REs in one or more resource blocks within theuplink shared channel are allocated to the UE 115 for an uplinktransmission. The UE 115 may then determine how to distribute theallocated REs among a set of different types of control informationand/or uplink data to be sent within the uplink transmission.

In some cases, the UE 115 may have UL-SCH data and signaling from theMAC layer to map on time and frequency resources of PUSCH. In somecases, the UE may also have UCI to transmit (e.g., piggyback) in thePUSCH transmission, as part of uplink communication to the base station.UCI is control signaling that may include any combination of (1) HARQACK/NACK information for one or more component carriers, (2) periodicCSI or aperiodic CSI feedback for one or more component carriers, (3) ascheduling request (SR), (4) a buffer status report (BSR), or the like.

UCI can be piggybacked on PUSCH resources that may or may not alsotransport UL-SCH data. For example, a UE may piggyback UCI on PUSCH withUL-SCH data (e.g., a MAC layer uplink shared channel). In anotherexample, a UE may transmit UCI, such as aperiodic CSI (A-CSI) feedback,via a PUSCH transmission that does not include any UL-SCH data. Inanother example, a UE may transmit both HARQ-ACK data and A-CSI in aPUSCH transmission without any UL-SCH data.

Based on a grant of REs and one or more parameters received from thebase station via control signaling (e.g., RRC signaling), the UE 115 maycalculate the amount of REs to allocate to acknowledgement feedback data(e.g., HARQ-ACK data) and multi-part CSI indication (e.g., CSI part 1,CSI part 2). In an example, for a PUSCH transmission that includesHARQ-ACK data and does not include UL-SCH data, the number of REs toallocate for HARQ-ACK data (e.g., the number of coded modulation symbolsper layer for HARQ-ACK data), denoted as Q_(ACK)′, may be determined byequation (1):

$\begin{matrix}{Q_{ACK}^{\prime} = {\min \left\{ {\left\lceil \frac{\begin{matrix}{\left( {O_{ACK} + L_{ACK}} \right) \cdot M_{sc}^{PUSCH} \cdot} \\{N_{symb}^{PUSCH} \cdot \beta_{offset}^{PUSCH}}\end{matrix}}{O_{{CSI} - {{part}\mspace{11mu} 1}} + L_{{CSI} - {{part}\; 1}}} \right\rceil,{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}} \right\}}} & (1)\end{matrix}$

where O_(ACK) may be the number of HARQ-ACK bits available fortransmission and L_(ACK) may be the number of CRC bits to be included inthe PUSCH transmission. The UE 115 may apply a CRC algorithm to theHARQ-ACK bits being sent in the PUSCH transmission to generate thevalues for the CRC bits. O_(CSI-part1) may represent the number of bitsfor CSI part 1 data available for transmission in the PUSCHtransmission. L_(CSI-part1) may be the number of CRC bits to be includedwith O_(CSI-part1). The UE 115 may apply a CRC algorithm to the CSI part1 bits being sent in the PUSCH transmission to generate the values forthe CRC bits. M_(sc) ^(PUSCH) may be the scheduled bandwidth of thePUSCH transmission, expressed as a number of subcarriers. N_(symb)^(PUSCH) may be the number of OFDM symbols of the PUSCH transmission,excluding all OFDM/single carrier frequency-division multiple access(SC-FDMA) symbols used for DMRS.

β_(offset) ^(PUSCH) may be a resource scaling factor (e.g., a linearscaling factor) having a value that is set based on downlink signalling(e.g., DCI, RRC signalling, etc.) received by the UE 115 from the basestation 105. For example, β_(offset) ^(PUSCH) may be represented as,β_(offset) ^(PUSCH)=β_(offset) ^(HARQ-ACK)/β_(offset) ^(CSI-part1),where β_(offset) ^(HARQ-ACK) is a weighting proportionality for HARQ-ACKbits and β_(offset) ^(CSI-part1) is a weighting proportionality for bitsof CSI part 1. M_(sc) ^(PT-RS) may be the number of subcarriers in anOFDM symbol that carries PTRS, in the PUSCH transmission. N_(symb)^(PTRS) may be the number of OFDM symbols that carry PTRS, in the PUSCHtransmission. M_(sc) ^(Φ) ^(UCI) (l)=|Φ_(l) ^(UCI)| may be the number ofelements in a set Φ_(l) ^(UCI), where Φ_(l) ^(UCI) is the set of REsavailable for transmission of UCI in OFDM symbol period l, for l=0, 1,2, . . . , N_(symb,all) ^(PUSCH)−1, and N_(symb,all) ^(PUSCH) is thetotal number of OFDM symbols of the PUSCH less the REs occupied by PTRSand therefore excluded in set Φ_(l) ^(UCI). The REs occupied by PTRS maybe determined based on M_(sc) ^(PT-RS) and N_(symb) ^(PTRS).

Based on equation (1), the UE 115 may determine the number of REs of thePUSCH transmission to allocate for HARQ-ACK data. The UE 115 may map theHARQ-ACK data (including the CRC bits) to REs of the PUSCH transmissionbased on the number of calculated REs. UE 115 may also determine thenumber of REs to allocate for transmission of CSI feedback. The UE 115may map the one or more CSI data allocations (including the CRC bits)based on the number of calculated REs. The UE 115 may then generate aPUSCH transmission based on the mapping.

The base station 105 may monitor the allocated REs for the PUSCHtransmission and attempt to decode the transmitted UCI data from theallocated REs. The base station 105 may use the CRC bits for determiningwhether each of the respective UCI data payloads are properly received.Both the UE 115 and the base station 105 may know the payload size forHARQ-ACK data, and REs allocated to the UE 115 for the uplinktransmission. In particular, the base station 105 may know the payloadsize of HARQ-ACK based on the scheduled number of downlink packets.Additionally, both the UE 115 and the base station 105 may know thepayload size of CSI part 1, given the CSI feedback type/modeconfiguration established at the base station.

A payload size for CSI part 2, however, may be rank dependent andtherefore configured by the UE. In particular, the UE 115 may generate arank indication (RI) for subsequent physical downlink shared channel(PDSCH) signaling, and provide the indication within CSI part 1. As aresult, base station 105 may be unaware of the payload size for CSI part2 until after decoding CSI part 1. Further, the payload size for CSIpart 2 may be vary significantly and dynamically (e.g., 0 to 200 bitsper component carrier) from uplink transmission to uplink transmission,thereby causing uncertainty at the base station 105 of how resources aresplit in the uplink transmission among the different UCI types.

Conventional techniques inefficiently split REs between HARQ-ACK and CSIdata in an uplink transmission. That is, when UCI is piggybacked onPUSCH, conventional techniques for splitting the granted REs may resultin a split where a single UCI type obtains a disproportionately largenumber of the granted REs, and the other UCI types obtain a small number(or none) of the granted REs. In particular, the quotient of equation(1) singularly includes CSI part 1 as a denominator value, and does notinclude a value for CSI part 2 data or HARQ-ACK data. As a result, theresource allotment for HARQ-ACK data may be disproportion in somecircumstances. For example, consider if the payload sizes 0 for each ofthe HARQ-ACK data, the CSI part 1 data, and the CSI part 2 data are thesame, and the weighting factors β are the same. Thus,

(O _(ACK) +L _(ACK))=(O _(CSI-part1) +L _(CSI-part1))=(O _(CSI-part2) +L_(CSI-part2)) and β_(offset) ^(HARQ-ACK)=β_(offset) ^(CSI-part1).

It would be expected that the allocated REs would be split at leastsomewhat evenly (e.g., a uniform allotment of REs) between the HARQ-ACKdata, the CSI part 1 data, and the CSI part 2 data. However, insertingthe payload sizes O for each of the HARQ-ACK data, the CSI part 1 data,and the CSI part 2 data are the same, and the weighting factors β intoequation (1) leaves M_(sc) ^(PUSCH)·N_(symb) ^(PHSCH) on the left sideof the minimum function, meaning that all of the PUSCH REs (e.g., M_(sc)^(PUSCH)·N_(symb) ^(PHSCH)) are allocated to HARQ-ACK data, and none areallocated to CSI part 1 data or CSI part 2 data. Thus, conventionaltechniques may disproportionally allocate REs to HARQ-ACK data.

To remedy at least this problem, the techniques described herein mayefficiently split allocated REs of a PUSCH transmission to each ofHARQ-ACK, CSI part 1, and CSI part 2, and optionally UL-SCH data. Insome examples, the splitting may be based on a reference payload sizefor CSI part 2. The UE 115 and the base station 105 may calculate how tosplit REs allocated for an uplink reference signal, and in some examplesmay do so in accordance with a reference payload size. The value of thereference payload size may reduce the likelihood of a disproportionateamount of the available REs being allocated to one of the UCI types, atthe expense of the other UCI types.

In some examples of the wireless communications system 100, variousPUSCH resource piggyback deployment scenarios, including mapping of UCIonto REs corresponding to a PUSCH transmission may be supported. The UE115 may map UCI and/or UL-SCH data to REs allocated by a grant for anuplink transmission. In some examples, UE 115 may piggyback UCI on thePUSCH transmission with or without UL-SCH data.

In an example, UE 115 may receive a grant from base station 105 as partof an uplink resource allocation. The grant may indicate one or moreresource blocks and corresponding REs of an uplink shared channel beingallocated to the UE 115 for an uplink transmission (e.g., a PUSCHtransmission). In some cases, the UE 115 may receive one or moreparameters via downlink signaling (e.g., via downlink controlinformation (DCI)) from a serving base station 105 on at least a TTI toTTI basis (e.g., a slot to slot basis). The parameters may be weightingfactors, allocation cap parameters, or the like.

In some cases, the UE 115 may receive and process RRC signaling from thebase station 105 that may include the one or more parameters (e.g., oneor more allocation cap parameters, one or more weighting factors, or thelike). Based on the received DCI and/or RRC signaling, the UE 115 maycalculate a number of resources for mapping UCI combinations (e.g., UCI)to the REs of the uplink resource allocation. Further, in some examples,each of the UE 115 and the base station 105 may split REs, for instance,in accordance with a reference payload size for CSI part 2. As a result,the UE 115 may determine a number of REs (e.g., the number of codedmodulation symbols) to allocate to each of the different UCI types(e.g., HARQ-ACK, CSI part 1, CSI part 2) and optionally UL-SCH data inproportion to a payload size for each UCI type and a optionally apayload size of the UL-SCH data. The UE 115 may generate an uplinktransmission based on the split, and transmit the uplink transmissionwithin the REs of the uplink shared channel indicated in the grant. Thebase station 105 may apply a similar calculation of how to split the REsamong the UCI types and optionally UL-SCH data, and monitor the REs ofthe uplink shared channel for an uplink transmission generated inaccordance with the split.

FIG. 2 illustrates an example of a wireless communications system 200that supports resource splitting among different types of controlinformation and uplink data for a transmission on an uplink sharedchannel in accordance with various aspects of the present disclosure. Insome examples, wireless communications system 200 may implement aspectsof wireless communications system 100. For example, wirelesscommunications system 200 includes UE 115-a and base station 105-a,which may be examples of the corresponding devices described withreference to FIG. 1. Wireless communications system 200 may supportpiggybacking CSI on a PUSCH transmission that may or might not includeUL-SCH data.

UE 115-a may be synchronized with and camped on base station 105-a. Inan example, UE 115-a may initiate establishment of an RRC connectionwith base station 105-a and may be configured to receive and transmitinformation 205 over licensed and unlicensed (shared) radio frequencyspectrum band resources. Additional bearer contexts may be allocated toUE 115-a as part of PDN connectivity, to establish end-to-endconnectivity between UE 115-a and the P-GW of the service network.

UE 115-a may receive downlink signaling from the base station 105-a,including a DCI indication and/or RRC signaling indication for one ormore parameters and an uplink resource grant of resources within theuplink shared channel. In some cases, UE 115-a may process RRC signalingor DCI communicated by the base station 105-a to obtain a set ofweighting factors that correspond to a respective UCI type, as part ofresource scaling. In some examples, the downlink signaling may indicatewhich method to use for calculating how to split REs of an uplinkresource allocation among a set of different UCI types and optionallyUL-SCH data.

The grant may indicate time and frequency resources allocated for anuplink transmission that may span a set of OFDM symbols and a bandwidththat spans a set of subcarriers. In an example, the grant may identify aset of one or more resource blocks for an uplink transmission, and eachof the resource blocks may include a set of REs. Each resource elementmay correspond to a single subcarrier (e.g., a tone) and a single OFDMsymbol. In some cases, UE 115-a may process the grant to determine someor none of the REs for the PUSCH transmission are allocated fortransporting UL-SCH data. UE 115-a may determine one or more UCIcombinations (e.g., types), including a multi-part CSI datatransmission, for resource allocation to REs of the grant. Further, insome examples, UE 115-a may determine a reference payload size for CSIpart 2 data. The reference payload size may be a size of a payload ofCSI part 2 data to be included in the uplink transmission, and used inequations described herein for calculating the number of REs to allocateto HARQ-ACK data, CSI part 1 data, and optionally UL-SCH data.

UE 115-a may evaluate the set of allocated REs of the uplink grant anddetermine a resource splitting among UCI types and optionally UL-SCHdata within the uplink resource allocation. In particular, UE 115-a maydetermine a splitting of the REs of the uplink resource allocation amongHARQ-ACK, CSI part 1, CSI part 2 data, and optionally UL-SCH data. Theresource splitting may include calculating a number of REs to allocateto each of the UCI types and optionally to UL-SCH data. The calculationmay be proportional to the received weighting factors and respectivepayload size for each UCI type and optionally UL-SCH data, including forexample a reference payload size for CSI part 2 data. The determinationmay be a function of the bandwidth and total number of OFDM symbolsallocated for the PUSCH transmission, excluding REs of the PUSCHtransmission allocated to transport other types of information and/ordata (e.g., demodulation reference signal, PTRS, etc.).

In some cases, UE 115-a may calculate the number of REs to allocate toeach of HARQ-ACK, CSI part 1, CSI part 2, and optionally UL-SCH databased on a set of calculative functions. For example, the calculationfor HARQ-ACK and CSI part 1 may be based on multiple-input single-output(MISO) transfer functions. The MISO functions may each calculate therelative minimum outputs of a pair of input functions. In some cases,the output may provide an indication for splitting the allocated REs forthe PUSCH transmission between the UCI types and optionally UL-SCH data,in proportion to their respective payload sizes (e.g., number of bits)that include the number of appended CRC bits.

Splitting of the allocated REs may be linearly scaled by the receivedweighting factors of each UCI type (e.g., a resource offset factor) andoptionally UL-SCH data. In some cases, the number of REs allocated toCSI part 1 and/or HARQ-ACK data may have a maximum value (e.g., capped)based on the total number of available resources, excluding REs of thePUSCH transmission assigned to one or more of DMRS, PTRS, additional UCIdata, and the like. In some examples, the calculated allocation of REsfor CSI part 2 may correspond to a calculated difference. For example,the calculated difference may correspond to a number of elements for CSIpart 2 based on the total number of resources (e.g., all allocated REsindicated in the grant) excluding the calculated number of allocated REsfor HARQ-ACK and CSI part 1 transmission.

In some examples, the UE 115-a may cap the amount of REs for allocationto each UCI type. In particular, a cap of the amount of REs that may beallocated for HARQ-ACK, CSI part 1, and in some cases, CSI part 2 may beintroduced by one or more allocation cap parameters received by the UE115-a from the base station 105-a via DCI and/or RRC signaling. Forexample, UE 115-a may determine the number of resources for each ofHARQ-ACK and CSI part 1 according to individual multiple-inputsingle-output (MISO) transfer functions. The functions may eachcalculate the relative minimum output of a pair of input functions. Insome cases, the minimum outputs may each correspond to a number of REsfor allocation to each of HARQ-ACK and CSI part 1, in proportion totheir respective payload sizes relative to the assumed reference sizefor CSI part 2.

In some examples, the number of REs allocated to each of HARQ-ACK andCSI part 1 data may have a maximum value (e.g., capped) based on aproportion of the total number of available resources. The proportionmay be calculated according to the one or more allocation capparameters. In some examples, the calculated allocation of REs for CSIpart 2 may correspond to either a calculated difference orproportionality weighting of the total number of resources.Specifically, the calculated difference may correspond to the amount ofresources (e.g., REs) for CSI part 2 based on the total number ofresources (e.g., all allocated REs indicated in the grant) excluding thecalculated number of allocated REs for HARQ-ACK and CSI part 1transmission. The proportionality weighting may correspond to aproportion of the total number of available resources. Similar toHARQ-ACK and CSI part 1, the proportion for CSI part 2 may be calculatedaccording to the one or more additional parameterization values.

Following calculation of the number of REs to allocate for each type ofUCI and optionally UL-SCH data, UE 115-a may map the REs for HARQ-ACK,CSI part 1, CSI part 2, and optionally UL-SCH data in accordance with amapping pattern corresponding to the respective calculated numbers ofREs for each UCI type and optionally UL-SCH data. In an example, thebase station 105-a may configure the UE 115-a with a set of mappingpatterns for different numbers of REs for HARQ-ACK, CSI parts 1 and 2,and optionally UL-SCH data. In another example, the UE 115-a may locallystore the set of mapping patterns. A mapping pattern may specify inwhich REs of a PUSCH transmission to map HARQ-ACK indication, CSI part 1data, CSI part 2 data, and optionally UL-SCH data, based on the resourcesplitting and in some examples a reference payload size for CSI part 2.The UE 115-a may also process the mapping pattern to determine where tomap the other types of data and/or information to REs of the PUSCHtransmission (e.g., DMRS, PTRS, UCI, CRC bits, or the like)). The UE115-a may generate a PUSCH transmission based on the split andcorresponding mapping pattern and transmit the PUSCH transmission withinthe REs of the uplink shared channel allocated in the grant.

Base station 105-a may calculate the resource splitting of the REs ofthe uplink resource allocation based on calculative functions for eachUCI type and optionally UL-SCH data in the same manner as determined byUE 115-a. Base station 105-a may determine a mapping patterncorresponding to the respective calculated numbers of REs for each UCItype and optionally UL-SCH data, and monitor the shared channel for thePUSCH transmission from the UE 115-a corresponding to the calculatedresource split. In an example, base station 105-a may attempt to decodethe coded modulation symbols of the uplink shared channel correspondingto the REs allocated in the grant in accordance with the determinedsplit. In particular, base station 105-a may determine a resourcesplitting proportionality between HARQ-ACK, CSI part 1, CSI part 2, andoptionally UL-SCH data. In some examples, such a determination may bebased on the reference payload size for CSI part 2. Base station 105-amay then know which of the REs of the uplink shared channel includeHARQ-ACK data, which REs include CSI part 1 data, which REs include CSIpart 2 data, and optionally which REs include UL-SCH data.

Base station 105-a may determine whether decoding of the REs allocatedfor the PUSCH transmission, in accordance with the known locations ofthe HARQ-ACK data, the CSI part 1 data, CSI part 2 data, and optionallyUL-SCH data passes a CRC check. For example, a receiver of base station105-a may process symbols of the allocated REs of the uplink sharedchannel in accordance with the known locations and identify locations ofthe CRC bits corresponding to respective payloads of the HARQ-ACK data,the CSI part 1 data, CSI part 2 data, and optionally UL-SCH data. If, insome cases, the observed (i.e., received) CRC bits match an expected CRCbit sequence for a particular payload (e.g., received CRC bits forHARQ-ACK data payload matches calculated CRC bits), base station 105-amay determine correct reception of the payload. If the CRC checkcorresponding to at least one of the payloads fails, the base station105-a may identify a decoding error and request a retransmission of atleast the one or more of the payloads that did not pass error detection.

The examples described herein may provide improved techniques forcalculating resource splitting of an uplink resource allocation amongUCI data types and optionally UL-SCH data, where the PUSCH transmissionmay or might not include UL-SCH data. UE 115-a may receive one or moreparameters via DCI or via RRC signaling and a grant of a set of REs ofan uplink shared channel for an uplink transmission, and subsequentlycalculate a split of the REs to allocate to HARQ-ACK, CSI part 1, CSIpart 2 data, and optionally UL-SCH data. In some examples, suchcalculating a split may be based on a reference payload size for CSIpart 2. In some examples, the number of REs of a PUSCH transmissionavailable to allocate to the data payloads of the UCI combinations mayexclude REs of the PUSCH transmission allocated for DMRS, PTRSsignaling, or the like.

In an example, UE 115-a may splitting the REs of an uplink grant, amongHARQ-ACK, CSI part 1, CSI part 2, and optionally UL-SCH data. Similarly,base station 105-a may split of the REs prior to decoding the uplinktransmission. The calculative method for determining may bepreconfigured or coordinated by UE 115-a and base station 105-a, basedon a downlink signaling indication of base station 105-a.

In addition, a reference payload size for CSI part 2 may be jointlycoordinated between UE 115-a and base station 105-a or pre-configured ateach of the base station 105-a and the UE 115-a. FIG. 3A illustrates anexample diagram 300-a of time and frequency resources that supportresource splitting among different types of control information anduplink data for a transmission on an uplink shared channel in accordancewith various aspects of the present disclosure. Depicted is atransmission time interval (TTI) 305-a that includes a PUSCH 355-ahaving a set of REs 370-a allocated to UE 115-a for an uplinktransmission. TTI 305-a may correspond to a set of OFDM symbols and aset subcarriers that are a set of time and frequency resources that thebase station 105-a may allocate to UE 115-a for an uplink transmission.Frequency is shown from top to bottom, and time is shown from left toright. The bandwidth of TTI 305-a may represent a portion of a systembandwidth that the base station 105-a may allocate to one or more UEs115. TTI 305-a may repeat in time and the base station 105-a mayallocate each TTI 305-a to the same UE or to different UEs. The time andfrequency resources of TTI 305-a may correspond to a resource block thatincludes 12 subcarriers and 14 symbol periods. The time and frequencyresources of TTI 305-a may include other numbers of subcarriers and/orsymbol periods.

A first symbol period of TTI 305-a (e.g., leftmost column) may be aphysical downlink control channel (PDCCH) 315-a and a second symbolperiod may be a guard period 350. The PDCCH 315-a may include downlinksignaling, such as DCI, that transports a grant allocating resources ofthe PUSCH 355-a of the TTI 305-a to the UE 115-a. In some examples,downlink signaling may further include a calculation method indicationfor coordinated resource calculation at the base station 105-a and theone or more UEs 115. The downlink signaling may further include one ormore parameters, including weighting factors for each of HARQ-ACK, CSIpart 1, CSI part 2, and optionally UL-SCH data, for use in calculatingthe splitting of the REs of the uplink resource allocation. Guard period350 may not transport any information and/or data to aid in obviatinginterference between downlink and uplink transmissions.

The PUSCH 355-a may be the set of REs corresponding to the set of symbolperiods 360-a that includes the third through the fourteenth symbolperiod of the TTI 305-a and the set of subcarriers within the bandwidth365-a of the PUSCH 355-a. In the depicted example, the PUSCH 355-aincludes 144 REs 370, and may include other numbers of REs in otherexamples.

For each of HARQ-ACK and CSI part 1, the UE 115-a may calculate thenumber of REs of the PUSCH 355 to allocate to HARQ-ACK and CSI part 1according to a pair of multiple-input single-output (MISO) transferfunctions. The MISO functions may calculate the relatively smallerresultant value of a pair of input functions. The smaller resultantvalues may be the number of REs to allocate to HARQ-ACK and CSI part 1data, respectively.

The first input of the transfer function may include a linearly scaledproportionality function expressed as a quotient between a weightedpayload size of the UCI type and the weighted total UCI payload,including a weighted payload size for HARQ-ACK, CSI part 1, and in someexamples the reference payload size for CSI part 2. For example, thetransfer function for HARQ-ACK may include the product of the payloadsize and weighting factor for HARQ-ACK in the numerator and thesum-weighted product of the total UCI data payload in the denominator.Similarly, the transfer function for CSI part 1 may include the productof the payload size and weighting factor for CSI part 1 in the numeratorand the sum-weighted product of the total UCI data payload in thedenominator. The payload size of each UCI type may include CRC bits forthe respective UCI type. The base station 105-a and the UE 115-a mayshare the same CRC algorithm that is used to generate the CRC bits forCSI part 1 data 330-a and for CSI part 2 data 335-a.

For HARQ-ACK, the second input of the transfer function may correspondto the output value of a summation function for a set representative ofthe number of REs available within the uplink resource allocation ofPUSCH 355-a. The second input of the transfer function for CSI part 1may correspond to a calculated difference between the output values ofthe summation function for a set representative of the number of REsavailable for transmission within PUSCH 355-a, and the total number ofREs of PUSCH 355-a allocated to HARQ-ACK 325-a. The REs assigned to DMRS320-a and 340-a, PTRS signaling 375-a, or additional UCI combinationsmay be subtracted from the set of available REs of the PUSCH 355-a thatmay be allocated to each of HARQ-ACK 325-a and CSI part 1 data 330-a.

For example, in some cases, the number of REs to allocate to HARQ-ACK,denoted as Q_(ACK)′ may be determined as follows by equation (2):

$\begin{matrix}{Q_{ACK} = {\min \begin{Bmatrix}{\left\lceil \frac{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\left( {O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} + L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 2}}}\end{matrix}} \right\rceil,} \\{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH}}{M_{sc}^{\Phi^{UCI}}(l)}}\end{Bmatrix}}} & (2)\end{matrix}$

The number of REs to allocate to CSI part 1 data, denoted asQ_(CSI-part1)′, may be determined as follows by equation (3):

$\begin{matrix}{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = {\min \begin{Bmatrix}{\left\lceil \frac{\left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right){\beta_{offset}^{{CSI}\text{-}{part}\; 1} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\left( {O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} + L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 2}}}\end{matrix}} \right\rceil,} \\{{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} - Q_{ACK}^{\prime}}\end{Bmatrix}}} & (3)\end{matrix}$

For each of the respective functions, O_(ACK) may be the number of bitsfor HARQ-ACK and O_(CSI-part1) may be the number of bits for CSI part 1.L_(AcK) may be the number of CRC bits for HARQ-ACK and L_(CSI-part1) maybe the number of CRC bits for CSI part 1. In the case that O_(CSI-part1)is less than or equal to a bit threshold (e.g., 11 bits) L_(CSI-part1)may be set to the value 0. The CRC bits for HARQ-ACK may be appended tothe information block corresponding to the HARQ-ACK data payload, andmay be implemented for reception verification of downlink signallingreceived at UE 115-a. The CRC bits for CSI part 1 may be appended to theinformation block corresponding to the CSI part 1 data payload, and maybe implemented for error management techniques of the uplink signalling.

O_(CSI-part2-reference) may be the number of bits of a reference payloadsize of CSI part 2. In some cases, O_(CSI-part2-reference) may bejointly coordinated with base station 105-a to provide the referencepayload size for CSI part 2. In some cases, O_(CSI-part2-reference) maybe pre-configured at each of the base station 105-a and the UE 115-abased on an assumed RI value. For example, base station 105-a and UE115-a may be preconfigured with or signal a rank value (e.g., RI) of 1and determine a payload size for O_(CSI-part2-reference) based on therank value. Other RI values may be pre-configured or signalled by basestation 105-a and UE 115-a, and coordinated for determining a payloadsize for CSI part 2. L_(CSI-part2-reference) may be the number of CRCbits for CSI part 2. In the case that O_(CSI-part2-reference) is lessthan or equal to a bit threshold (e.g., 11 bits) L_(CSI-part2-reference)may be set to the value 0. The CRC bits for CSI part 2 may be appendedto the information block corresponding to the CSI part 2 data payload,and may be implemented for feedback indication including wideband andsub-band CQI feedback.

M_(sc) ^(PUSCH) may be the scheduled bandwidth of the PUSCHtransmission, expressed as a number of subcarriers; and N_(symb)^(PUSCH) may be the number of OFDM symbols of the PUSCH transmission,excluding all OFDM/single carrier frequency-division multiple access(SC-FDMA) symbols used for DMRS. SC-FDMA may also be known asDFT-S-OFDM. The product of M_(sc) ^(PUSCH) and N_(symb) ^(PUSCH) may berepresentative of a total number of REs of the PUSCH allocated by thegrant, less all REs allocated for DMRS.

β_(offset) ^(HARQ-ACK) may be the weighting factor for HARQ-ACK datatransmission. β_(offset) ^(HARQ-ACK) may be represented in the numeratorof the linearly scaled proportionality function expressed in equation(2). Similarly, β_(offset) ^(CSI-part1) may be the weighting factor forCSI part 1 and β_(offset) ^(CSI-part2) may be the weighting factor forCSI part 2. Each of the represented weighting factors may be associatedwith a resource scaling of the uplink resource allocation, for resourceelement splitting among the UCI types.

M_(sc) ^(PTRS) may be the number of subcarriers in an OFDM symbol thatcarries PTRS, in the PUSCH transmission; and N_(symb) ^(PTRS) may be thenumber of OFDM symbols that carry PTRS, in the PUSCH transmission,excluding all OFDM symbols used for DMRS. M_(sc) ^(Φ) ^(UCI) (l)=|Φ_(l)^(UCI)| may be the number of elements in a set Φ_(l) ^(UCI), where Φ_(l)^(UCI) is the set of REs available for transmission of UCI in OFDMsymbol period l, for l=0, 1, 2, . . . , N_(sybm,all) ^(PUSCH)−1, andN_(symb,all) ^(PUSCH) is the total number of OFDM symbols of the PUSCHless the REs occupied by PTRS and therefore excluded in set Φ_(l)^(UCI). The REs occupied by PTRS may be determined based on M_(sc)^(PTRS) and N_(symb) ^(PTRS).

The UE 115-a may use equations (2) and (3) to calculate how to split thenumber of REs among HARQ-ACK data and CSI part 1 data.

In an example, UE 115-a may use equation (2) to calculate a number ofthe granted REs to allocate to the HARQ-ACK data 325-a in proportion toa weighted payload size of the HARQ-ACK data (e.g.,(O_(ACK)+L_(ACK))*β_(offset) ^(HARQ-ACK)) relative to a function of theweighted payload size of the HARQ-ACK data, a weighted payload size ofthe CSI part 1 data (e.g., (O_(CSI-part1)+L_(CSI-part1)), and a weightedpayload size of a refernce payload size (e.g.,(O_(CSI-part2-reference)+L_(CSI-part2-reference))*β_(offset)^(CSI-part2)). In an example, UE 115-a may use equation (3) to calculatea number of the granted REs to allocate to the CSI part 1 data inproportion to a weighted payload size of the CSI part 1 data relative toa function of a weighted payload size of the HARQ-ACK data, the weightedpayload size of the CSI part 1 data, and a weighted payload size of areference payload size.

The UE 115-a may then calculate the number of REs to allocate to CSIpart 2, denoted as Q_(CSI-part2)′, based on a calculated difference. Thecalculated difference may correspond to a number of elements for CSIpart 2 based on the total number of resources (e.g., all allocated REsindicated in the grant) excluding the calculated number of allocated REsfor HARQ-ACK and CSI part 1 transmission, denoted as follows by equation(4):

$\begin{matrix}{Q_{{CSI}\text{-}{part}\; 2}^{\prime} = {\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime}}} & (4)\end{matrix}$

The calculated difference may correspond to any remaining REs of PUSCH355-a. The remaining REs may exclude any REs allocated for transmissionof other information and/or data, such as DMRS 320-a and 340-a and PTRS375-a. If there are not any remaining REs, then the UE 115-a may notallocate any REs of PUSCH 355-a for transport of CSI part 2 data.

If, in some cases, the actual CSI part 2 data payload exceeds thecapacity of the calculated number of allocated REs for CSI part 2, UE115-a may drop excess bits of the CSI part 2 data payload to meet theallocated resource element capacity of the calculation. In particular,UE 115-a may drop the bits corresponding to sub-band CQI feedback, whileincluding the bits for wideband CQI feedback within the allocated REsfor CSI part 2.

UE 115-a may map the REs for the UCI combinations in accordance with amapping pattern corresponding to the respective calculated numbers ofREs for HARQ-ACK 325-a, CSI part 1 data 330-a, and CSI part 2 data335-a. In an example, the base station 105-a may configure the UE 115-awith a set of mapping patterns for different numbers of REs for HARQ-ACK325-a, CSI part 1 data 330-a, and CSI part 2 data 335-a. In anotherexample, the UE 115-a may locally store the set of mapping patterns. Amapping pattern may specify in which REs of a PUSCH transmission to mapthe UCI combinations. An example mapping pattern corresponds to theshading of the PUSCH 355-a in FIG. 3A, where a first shading patternindicates which REs 370-a are used to transport HARQ-ACK data 325-a, asecond shading pattern indicates which REs 370-a are used to transportCSI part 1 data 330-a, and a third shading pattern REs 370-a are used totransport CSI part 2 data 335-a. As a result, the mapping may correspondto a resource splitting of the uplink resource allocation in proportionto the payload size for each UCI type. The mapping pattern may alsoindicate which REs of the PUSCH 355-a are allocated to transport DMRS320-a and 340-a, and PTRS 375-a.

DMRS 320-a and 340-a may aid in channel estimation and coherentdemodulation of the uplink shared channel. Each of DMRS 320-a and 340-amay be modulated according to the complex-valued Zadoff-Chu sequence andmapped directly onto the subcarriers of PUSCH using OFDM. In some cases,the UE 115-a may map DMRS 320-a or DMRS 340-a to all subcarrierfrequencies in a particular symbol period. In some cases, the UE 115-amay map DMRS 320-a or DMRS 340-a to distinct REs in a particular symbolperiod, allowing resource frequency gaps 380-a where nothing istransmitted between REs that include symbols transporting DMRS. This maybe referenced as a comb-like structure for DMRS signaling.

Additionally, PTRS 375-a may be transported within one or more REs ofPUSCH 355-a. PTRS 375-a may be implemented in NR systems to enablecompensation for oscillator phase noise associated with the carrierproperties of the channel. Specifically, phase noise may increase as afunction of oscillator carrier frequency. PTRS 375-a may therefore beutilized for high carrier frequencies (e.g., mmW) to mitigate phasenoise and therefore potential degradations to signaling (e.g., commonphase error (CPE).

The UE 115-a may generate a PUSCH transmission that is a waveformgenerated based on the mapping pattern, and transmit the PUSCHtransmission within the set of REs allocated to the UE 115-a in thegrant. In some cases, the UE 115-a may be configured to generate aDFT-S-OFDM waveform, a CP-OFDM waveform, or the like.

Base station 105-a may monitor the shared channel for the PUSCHtransmission from the UE 115-a. In an example, base station 105-a maycalculate the resource splitting of the uplink resource allocation basedon the calculative functions for each UCI type. In particular, basestation 105-a may similarly calculate the number of allocated REs forHARQ-ACK 325-a according to equation (1), the number of allocated REsfor CSI part 1 data 330-a according to equation (2), and the number ofallocated REs for CSI part 2 data 335-a according to equation (3). Insome cases, the calculations may be proportional to the weightingfactors and respective payload size for each UCI type.

Base station 105-a may attempt to decode the coded modulation symbols ofthe uplink shared channel corresponding to the allocation indicated inthe grant. Base station 105-a may also determine locations of CRC bitsfor the HARQ-ACK data, CSI part 1 data, and CSI part 2 data within theuplink shared channel. Base station 105-a may determine whether decodingof the REs allocated for the PUSCH transmission, in accordance with thedetermined split, passes a CRC check. If, in some cases, the observed(i.e., received) CRC bits match an expected CRC bit sequence for aparticular payload (e.g., HARQ-ACK data payload), base station 105-a maydetermine correct reception of the HARQ-ACK data. If the CRC checkcorresponding to some or all of the payloads fails, the base station105-a may identify a decoding error and request a retransmission of thepayloads that did not pass error detection.

In another example, a UE 115-a may determine a number of REs of anuplink transmission to split among HARQ-ACK 325-a, CSI part 1 data330-a, and CSI part 2 data 335-a that caps the number of REs that may beallocated to each of the different UCI types. The caps may be set basedon allocation cap parameters coordinated by the UE 115-a and a basestation 105-a. A reference payload size for CSI part 2 may be jointlycoordinated between UE 115-a and base station 105-a or pre-configured ateach of the base station 105-a and the UE 115-a. UE 115-a may cap theamount of REs for allocation to each UCI type according to one or moreadditional parameterization values of the received DCI and/or RRCsignaling from base station 105-a. The additional parameterizationvalues may correspond to at least proportionality constants α and γrespective to resource size calculations for HARQ-ACK and CSI part 1.

FIG. 3B illustrates an example diagram 300-b of time and frequencyresources that support calculating channel state information resourcesfor an uplink transmission on an uplink shared channel in accordancewith one or more aspects of the present disclosure. TTI 305-b is anexample of TTI 305-a. TTI 305-b may correspond to a set of OFDM symbolsand may have a bandwidth 365-b corresponding to a set of subcarriers.Frequency is shown from top to bottom, and time is shown from left toright. A first symbol period of TTI 305-b may include a PDCCH 315-b anda second symbol period of TTI may include a guard period 350-b, and maybe similar to the description above of PDCCH 315-a and guard period350-a. PUSCH 355-b may be the set of REs corresponding to the set ofsymbol periods 360-b that includes the third through the fourteenthsymbol period of the TTI 305-b and the set of subcarriers within thebandwidth 365-b of the PUSCH 355-b. In the depicted example, the PUSCH355-b includes 144 REs 370-a, and may include other numbers of REs inother examples.

For each of HARQ-ACK and CSI part 1, the UE 115-a may calculate thenumber of REs of the PUSCH 355-b to allocate to HARQ-ACK and CSI part 1according to a pair of multiple-input single-output (MISO) transferfunctions. The MISO functions may calculate the relatively smallerresultant value of a pair of input functions. The smaller resultantvalues may be the number of REs to allocate to HARQ-ACK and CSI part 1data, respectively.

The first input of the transfer function may include a linearly scaledproportionality function expressed as a quotient between a payload sizeof the UCI type and in some examples a reference payload size for CSIpart 2. For example, the transfer function for HARQ-ACK may include theproduct of the payload size and weighting factor for HARQ-ACK in thenumerator and the product of the reference payload size (in someexamples) and weighting factor for CSI part 2 in the denominator.Similarly, the transfer function for CSI part 1 may include the productof the payload size and weighting factor for CSI part 1 in the numeratorand the product of the reference payload size (in some examples) andweighting factor for CSI part 2 in the denominator. The payload size ofeach UCI type may include CRC bits for the respective UCI type.

The second input of the transfer function may correspond to aproportionality weighted value of the summation function for a setrepresentative of the number of REs available within the uplink resourceallocation of PUSCH 355-b. The REs assigned to DMRS 320-b and 340-b,PTRS signaling 360-b, or additional UCI combinations may be subtractedfrom the set of available REs of the PUSCH 355-b. Each of the secondinputs of the transfer functions for HARQ-ACK and CSI part 1 may becapped by respective allocation cap parameters α and γ.

For example, in some cases, the number of resources to allocate toHARQ-ACK, denoted as Q_(ACK)′, may be determined as follows by equation(5):

$\begin{matrix}{Q_{ACK}^{\prime} = {\min \left\{ {\left\lceil \frac{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}{\left( {O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} + L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 2}} \right\rceil,{\alpha {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}} \right\}}} & (5)\end{matrix}$

The number of REs to allocate to CSI part 1 data, denoted asQ_(CSI-part1), may be determined as follows by equation (6):

$\begin{matrix}{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = {\min \left\{ {\left\lceil \frac{\left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right){\beta_{offset}^{{CSI}\text{-}{part}\; 1} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}}{\left( {O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} + L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 2}} \right\rceil,{\gamma {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}} \right\}}} & (6)\end{matrix}$

The included variable values in equations (5) and (6) may be the same asthe defined values with reference to equations (1), (2), and (3).Further, the allocation cap parameters α and γ may be configured suchthat α<1, and γ<1.

The UE 115-a may use equations (5) and (6) to calculate the number ofREs to allocate to HARQ-ACK data 325-b and CSI part 1 data 330-b. The UE115-a may then calculate the number of REs to allocate to CSI part 2,denoted as Q_(CSI-part2)′, based on either a calculated difference orproportionality weighting of the set of available REs of the PUSCH355-b. In the case of a calculated difference, the number of allocatedresources for CSI part 2, denoted as Q_(CSI-part2)′, may be determinedas follows by equation (7):

$\begin{matrix}{Q_{{CSI}\text{-}{part}\; 2}^{\prime} = {\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime}}} & (7)\end{matrix}$

In the case of a proportionality weighting, the number of allocatedresources for CSI part 2, denoted as Q_(CSI-part2), may be determined asfollows by equation (8):

$\begin{matrix}{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = {\lambda {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}} & (8)\end{matrix}$

where λ is a distinct proportionality constant configured such that λ<1and the sum of α, γ, and λ does not exceed 1.

As described with reference to equations (2) through (4), M_(sc) ^(Φ)^(UCI) (l)=|Φ_(l) ^(UCI)| may be the number of elements in a set Φ_(l)^(UCI), where Φ_(l) ^(UCI) is the set of REs available for transmissionof UCI in OFDM symbol period l, for l=0, 1, 2, . . . , N_(symb,all)^(PUSCH)−1, and N_(symb,all) ^(PUSCH) is the total number of OFDMsymbols of the PUSCH, less the REs occupied by PTRS and thereforeexcluded in set Φ_(l) ^(UCI). Q_(ACK)′ and Q_(CSI-part1) may be thenumber of coded modulation symbols per layer for HARQ-ACK and CSI part 1on PUSCH, as described herein with reference to equations (5) and (6).

Similar to the description provided above, the UE 115-a may then map, inaccordance with a mapping pattern, HARQ-ACK data 325-b, CSI part 1 data330-b, CSI part 2 data 335-b, and up to each of DMRS 320-b and 340-b,and PTRS 375-b to the REs of PUSCH 355-b for generation of a PUSCHtransmission. In some cases, the UE 115-a may map DMRS 320-b or 340-b todistinct REs in a particular symbol period, allowing resource frequencygaps 380-b where nothing is transmitted between REs that include symbolstransporting DMRS. This may be referenced as a comb-like structure forDMRS signaling.

The UE 115-a may transmit the PUSCH transmission within the set of REsof the uplink shared channel indicated in the grant. Base station 105-amay monitor the shared channel for the PUSCH transmission from the UE115-a. In an example, base station 105-a may calculate the resourcesplitting of the REs of the uplink resource allocation based oncalculative functions for each UCI type. In particular, base station105-a may similarly calculate the number of allocated REs for HARQ-ACK325-b according to equation (5), the number of allocated REs for CSIpart 1 data 330-b according to equation (6), and the number of allocatedREs for CSI part 2 data 335-b according to one of equations (7) or (8).Base station 105-a may then subsequently attempt to decode the codedmodulation symbols of the uplink shared channel corresponding to theallocation indicated in the grant, similar to the descriptions providedabove and herein.

In some examples, the uplink transmission may also include UL-SCH data.FIG. 4 illustrates an example diagram 400 of time and frequencyresources that support resource splitting among different types ofcontrol information and uplink data for a transmission on an uplinkshared channel in accordance with various aspects of the presentdisclosure. TTI 305-c may correspond to a set of OFDM symbols and mayhave a bandwidth 365-c corresponding to a set of subcarriers. Frequencyis shown from top to bottom, and time is shown from left to right. Afirst symbol period of TTI 305-c may include a PDCCH 315-c and a secondsymbol period of TTI may include a guard period 350-c. PUSCH 355-c maybe the set of REs corresponding to the set of symbol periods 360-c thatincludes the third through the fourteenth symbol period of the TTI 305-cand the set of subcarriers within the bandwidth 365-c of the PUSCH355-c. In the depicted example, the PUSCH 355-c includes 144 REs 370-c,and may include other numbers of REs in other examples.

The techniques described herein may provide for resource splitting amongdifferent UCI types and UL-SCH when piggybacking UCI on PUSCH thatincludes UL-SCH data 485. Similar to the discussion provided above, areference payload size may be assumed for CSI-part 2 data. The UE 115-amay split the granted REs in proportion to a payload size for each ofHARQ-ACK 325-c, CSI part 1 data 330-c, CSI part 2 data 335-c, and UL-SCHdata 485 and multiplied by a respective weighting factor β. The basestation 105-a and the UE 115-a may be pre-configured with and/or signala reference size for CSI-part 2 for splitting the granted REs amongHARQ-ACK 325-c, CSI part 1 data 330-c, CSI part 2 data 335-c, and UL-SCHdata 485. Then the resource splitting among UCI types and UL-SCH data isproportional to payload sizes of UCI and UL-SCH multiplied by respectiveweighting factors β. As in some other examples, the payload size for CSIpart 2 for the uplink transmission may be the reference payload size.

In an example, the number of REs (e.g., the number coded modulationsymbols per layer) for HARQ-ACK denoted as Q_(ACK)′, CSI part 1transmission denoted as Q_(CSI-part1)′, and CSI part 2 transmissiondenoted as Q_(CSI-part2)′, and for UL-SCH denoted as Q_(UL-SCH)′ aredetermined as follows:

$\begin{matrix}{Q_{ACK}^{\prime} = {\min \begin{Bmatrix}{\left\lceil \frac{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} + {\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}}\end{matrix}} \right\rceil,} \\{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}\end{Bmatrix}}} & {{Equation}\mspace{14mu} (9)} \\{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = {\min \begin{Bmatrix}{\left\lceil \frac{\left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 1}M_{sc}^{PUSCH}N_{symb}^{PUSCH}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} + {\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}}\end{matrix}} \right\rceil,} \\{\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime}}\end{Bmatrix}}} & {{Equation}\mspace{14mu} (10)} \\{Q_{{CSI}\text{-}{part}\; 2}^{\prime} = {\min \begin{Bmatrix}{\left\lceil \frac{\left( {O_{{CSI}\text{-}{part}\; 2} + L_{{CSI}\text{-}{part}\; 2}} \right)\beta_{offset}^{{CSI}\text{-}{part}\; 2}M_{sc}^{PUSCH}N_{symb}^{PUSCH}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} + {\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}}\end{matrix}} \right\rceil,} \\\begin{matrix}{\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) -} \\{Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime}}\end{matrix}\end{Bmatrix}}} & {{Equation}\mspace{14mu} (11)} \\{\mspace{79mu} {Q_{{UL}\text{-}{SCH}}^{\prime} = {\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime} - Q_{{CSI}\text{-}{part}\; 2}^{\prime}}}} & {{Equation}\mspace{14mu} (12)}\end{matrix}$

The included variable values equations (9)-(12) may be the same as thedefined values with reference to equations (1)-(8). Additionally,C_(UL-SCH) is the number of code blocks for UL-SCH data 485 of the PUSCHtransmission, K_(r) is the r-th code block size for UL-SCH of the PUSCHtransmission, and β_(offset) ^(UL-SCH) is the weighting factor forUL-SCH. In some examples, β_(offset) ^(UL-SCH)=1 because the weightingfactors for the different UCI types are defined with respect to UL-SCH.

The UE 115-a and the base station 105-a may use the equations (9)-(12)to determine how to split the granted REs among the different UCI typesand UL-SCH data 485. The UE 115-a may map and generate an uplinktransmission in accordance with the split, similar to the descriptionprovided above. The base station 105-a may also calculate the splitusing equations (9)-(12), and monitor the granted REs of the uplinkshared channel for the uplink transmission based on the calculatedsplitting of the REs of the uplink shared channel indicated in thegrant, similar to the description provided above.

The equations described herein may be modified to provide anotherexample of how to perform resource splitting. For example, therespective numerators in equations (2)-(4) and (9)-(12) is a function ofa total number of REs excluding the number of REs allocated to DMRS320-c and 340-c, and PTRS. These equations may be express where thetotal number of REs includes the number of REs allocated to DMRS andPTRS REs in the numerator, as described below.

In the above equations, M_(sc) ^(PUSCH) is the scheduled bandwidth ofthe PUSCH transmission, expressed as a number of subcarriers, andN_(symb) ^(PUSCH) is the number of OFDM symbols of the PUSCHtransmission, excluding all OFDM symbols used for DMRS. M_(sc) ^(Φ)^(UCI) (l)=|Φ_(l) ^(UCI)| is the number of elements in set Φ_(l) ^(UCI),where Φ_(l) ^(UCI) is the set of REs available for transmission of UCIin OFDM symbol l, for l=0, 1, 2, . . . , N_(symb,all) ^(PUSCH)−1, andN_(symb,all) ^(PUSCH) is the total number of OFDM symbols of the PUSCH.REs occupied by PTRS are excluded in set Φl_(UCI).

Considering the definition of the above three terms, it can be seen that

$\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right)$

is the total number (i.e., denoted herein as X) of granted REs in theone or more resource blocks of the PUSCH allocated for the uplinktransmission, and the X REs are split among HARQ-ACK, CSI part 1,optionally CSI part 2 (if CSI part 2 data is available), and optionallyUL-SCH (if UL-SCH data is available). Another way to interpret

$\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right)$

is that

${\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) = {{M_{sc}^{PUSCH}N_{syM}^{PUSCH}} - Y}},$

where Y is the number of REs occupied by DMRS and PTRS, and M_(sc)^(PUSCH) N_(symb) ^(PUSCH) is the total number of REs including REs ofDMRS and PTRS.

Based on the relation between

$\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right)$

and M_(sc) ^(PUSCH)N_(symb) ^(PUSCH), equations (2)-(4) and (9)-(12)presented in above sections, M_(sc) ^(PUSCH)N_(symb) ^(PUSCH) may bereplaced with

$\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right)$

in the numerator of the first term within a minimum boundary (e.g., min{}) operation in each equation. Also, the min{ } operation, and thesecond term within min{ } may be removed, as shown in the equationsbelow.

The following presents an example of rewriting equations (2)-(4) whereUCI is piggybacked on PUSCH without UL-SCH. In an example, the number ofREs (e.g., coded modulation symbols per layer) for HARQ-ACK denoted asQ_(ACK)′, CSI part 1 transmission denoted as Q_(CSI-part1)′, and CSIpart 2 transmission denoted as Q_(CSI-part2)′, are determined byrespectively rewriting equations (2)-(4) as follows:

$\begin{matrix}{Q_{ACK} = \frac{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}} \cdot {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}}}\end{matrix}}} & {{Equation}\mspace{14mu} (13)} \\{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = \frac{\begin{matrix}\left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right) \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} \cdot M_{sc}^{PUSCH} \cdot N_{symb}^{PUSCH}}\end{matrix}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}}}\end{matrix}}} & {{Equation}\mspace{14mu} (14)} \\{Q_{{CSI}\text{-}{part}\; 2}^{\prime} = {\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime}}} & {{Equation}\mspace{14mu} (15)}\end{matrix}$

The following presents an example of rewriting equations (9)-(12) whereUCI is piggybacked on PUSCH with UL-SCH. In an example, the number ofREs (e.g., number of coded modulation symbols per layer) for HARQ-ACKdenoted as Q_(ACK)′ CSI part 1 transmission denoted as Q_(CSI-part1)′,and CSI part 2 transmission denoted as Q_(CSI-part2)′, and for UL-SCHdenoted as Q_(UL-SCH)′ are determined by respectively rewritingequations (9)-(12) as follows:

$\begin{matrix}{Q_{ACK}^{\prime} = \frac{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}} \cdot {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}{\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right) \cdot \beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\\begin{matrix}{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} +} \\{\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}\end{matrix}\end{matrix}}} & {{Equation}\mspace{14mu} (16)} \\{Q_{{CSI}\text{-}{part}\; 1}^{\prime} = \frac{\begin{matrix}\left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right) \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1}{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}\end{matrix}}{\begin{matrix}\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right)\beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} +}\end{matrix} \\{\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}\end{matrix}}} & {{Equation}\mspace{14mu} (17)} \\{Q_{{CSI}\text{-}{part}\; 2}^{\prime} = \frac{\begin{matrix}\left( {O_{{CSI}\text{-}{part}\; 2} + L_{{CSI}\text{-}{part}\; 2}} \right) \\{\beta_{offset}^{{CSI}\text{-}{part}\; 2}{\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}}}\end{matrix}}{\begin{matrix}\begin{matrix}{{\left( {O_{ACK} + L_{ACK}} \right)\beta_{offset}^{{HARQ}\text{-}{ACK}}} + \left( {O_{{CSI}\text{-}{part}\; 1} + L_{{CSI}\text{-}{part}\; 1}} \right)} \\{\beta_{offset}^{{CSI}\text{-}{part}\; 1} + {\begin{pmatrix}{O_{{CSI}\text{-}{part}\; 2\text{-}{reference}} +} \\L_{{CSI}\text{-}{part}\; 2\text{-}{reference}}\end{pmatrix}\beta_{offset}^{{CSI}\text{-}{part}\; 2}} +}\end{matrix} \\{\left( {\sum\limits_{r = 0}^{C_{{UL}\text{-}{SCH}} - 1}K_{r}} \right)\beta_{offset}^{{UL}\text{-}{SCH}}}\end{matrix}}} & {{Equation}\mspace{14mu} (18)} \\{Q_{{UL}\text{-}{SCH}}^{\prime} = {\left( {\sum\limits_{l = 0}^{N_{{symb},{all}}^{PUSCH} - 1}{M_{sc}^{\Phi^{UCI}}(l)}} \right) - Q_{ACK}^{\prime} - Q_{{CSI}\text{-}{part}\; 1}^{\prime} - Q_{{CSI}\text{-}{part}\; 2}^{\prime}}} & {{Equation}\mspace{14mu} (19)}\end{matrix}$

Thus, the total number of REs in the numerators in equations (2)-(4) and(9)-(12) exclude the number of REs allocated to DMRS 320-c and 340-c,and PTRS REs, and may be rewritten as shown in equations (13)-(19) wherethe total number of REs includes the number of REs allocated to DMRS320-c and 340-c, and PTRS REs in the numerator.

FIG. 5 illustrates an example of a process flow 500 in a system thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with various aspects of the present disclosure. In someexamples, process flow 500 may implement aspects of wirelesscommunication system 100. For example, process flow 500 includes UE115-b and base station 105-b, which may examples of the correspondingdevices described with reference to FIGS. 1 through 4.

Base station 105-b may transmit downlink signaling (e.g., DCI, RRCsignaling) indication 505 for one or more parameters and an uplinkresource grant of resources within the uplink shared channel. Thedownlink signaling may include an indication of a calculation method forresource splitting of an uplink resource allocation. In particular, thesignaling may indicate a calculative method preference for calculatingthe number of resources for allocation to HARQ-ACK, CSI part 1, and CSIpart 2 based on the set of equations (2)-(4), or the set of equations(5), (6), and one of (7) or (8), or the set of equations (9)-(12), orthe set of equations (13)-(15), or the set of equations (16)-(19), withreference to FIGS. 3A-B and 4. In other examples, the calculation methodmay be preconfigured.

Each of the respective calculative methods, in some examples, may bebased on an preconfigured or signaled reference payload size for CSIpart 2. Transmission 505 may include a grant indicating a resourceallocation for an uplink transmission in an uplink shared channel. Theresource allocation may correspond to a set of time and frequencyresources for the UE 115-b to send a PUSCH transmission. The grant mayindicate a set of REs corresponding to tones (subcarriers) and OFDMsymbol periods within an uplink shared channel. In some cases, the basestation 105-b may send the grant indication in a different transmission.

The transmission 505 may also include a set of weighting factorscorresponding to each UCI type and optionally UL-SCH data as part of aresource scaling. In some cases, base station 105-b may send theresource scaling factor in a different transmission. Each of theweighting factors β may correspond to a proportionality indication,including a weighting for HARQ-ACK, CSI part 1, CSI part 2, andoptionally UL-SCH. Base station 105-b may determine how to distributeresources among each type of UCI and optionally UL-SCH, and set aresource scaling of the weighting factors accordingly.

UE 115-b may receive and process transmission 505 to obtain the resourcegrant and optionally to determine a calculative method for resourcesplitting of the uplink resource allocation for UCI data payloads. Insome examples, UE 115-b may determine that transmission 505 does notallocate any REs of the PUSCH transmission to transport UL-SCH data. Insome cases, UE 115-a may process the grant and determine that the UE115-a is instructed to only include non-access stratum data, and noaccess stratum data, within the uplink transmission.

At 510, UE 115-b may calculate how to split the number of allocated REsof PUSCH to allocate to each of HARQ-ACK, CSI part 1, CSI part 2 andoptionally UL-SCH data based on the indicated set of equations providedherein. The calculations may be based on the received weighting factorsfor each UCI type and optionally for UL-SCH data, and identifyingfeatures of the CSI transmission. In some examples, such identifyingfeatures may include a reference payload size for CSI part 2. In somecases, the calculations may be based on a set of transfer equations thatdetermine the number of REs for allocation to each UCI type based on therespective payload size relative to the total UCI data payload. In somecases, the calculations may include capping the amount of resources foreach UCI type. In some cases, the calculations may specify an amount ofthe resource element to allocate to UL-SCH data.

Following calculation of a number of resources to allocate to HARQ-ACK,CSI part 1, CSI part 2, and optionally UL-SCH data, UE 115-b maygenerate shared channel transmission at 515. The generation may includemapping of each UCI data payload and optionally the UL-SCH data payloadto the resources of PUSCH allocated by the grant, in association withadditional coded modulation signaling (e.g., DMRS, PTRS, etc.). UE 115-bmay then transmit the uplink transmission 520 to base station 105-b onthe uplink shared channel.

At 525, base station 105-a may monitor the shared channel for the PUSCHtransmission from the UE 115-a and calculate the resource splitting ofthe uplink resource allocation based on the set of functions for theindicated calculative method preference. In particular, base station105-a may similarly calculate the number of allocated REs for HARQ-ACK,CSI part 1, and CSI part 2 based on the set of equations (2)-(4), or theset of equations (5), (6), and one of (7) or (8), or the set ofequations (9)-(12), or the set of equations (13)-(15), or the set ofequations (16)-(19), with reference to FIGS. 3A-B and 4. with referenceto FIGS. 3A-B and 4. The calculations may be proportional to theweighting factors and respective payload size for each UCI type andoptionally UL-SCH, including in some examples a reference payload sizefor CSI part 2. In some cases, base station 105-a may perform themonitoring at 525 at other times including distinctly prior to, orsubsequently following the reception of uplink transmission 520, or aspart of grant generation prior to downlink signaling 505.

At 530, base station 105-b may attempt to decode the coded modulationsymbols of the uplink shared channel. In an example, base station 105-bmay attempt to decode the coded modulation symbols of the uplink sharedchannel corresponding to the allocation indicated in the grant. Becauseof the different mapping patterns, the REs transporting the UCI datapayloads and optionally UL-SCH data may be in different locations withinthe shared data channel. The base station 105-b may identify the mappingpattern corresponding to the calculated resource split.

The base station 105-b may use the calculated resource split fordetermining the expected locations of REs of the uplink transmissionthat include the CRC bits for each of HARQ-ACK, CSI part 1, CSI part 2,and optionally UL-SCH. The base station 105-b may perform a CRC checkusing the CRC bits each UCI type data payload and optionally UL-SCHpayload, and determine if the obtained CSI data for HARQ-ACK, CSI part1, CSI part 2 and optionally UL-SCH passes a respective CRC check. Ifthe obtained HARQ-ACK data, CSI part 1 data, the CSI part 2 data, andoptionally UL-SCH data each passes CRC, the base station 105-b may sendan acknowledgment to the UE 115-b indicating that the UCI data andoptionally UL-SCH passed CRC. If one or more of the obtained HARQ-ACKdata, CSI part 1 data, the CSI part 2 data, and optionally UL-SCH datadid not pass CRC, the base station 105-b may send a negativeacknowledgment to the UE 115-b indicating that which the UCI datapayloads and optionally UL-SCH data did not pass CRC. The UE 115-b mayretransmit the HARQ-ACK, CSI part 1, CSI part 2 data and optionallyUL-SCH data in a subsequent uplink transmission.

In some examples, the techniques described herein may utilize areference payload size to provide an improved distribution of allocatedREs between different types of control information, and reduce theprobability of the entirety of the allocated REs being allocated to asingle UCI type.

FIG. 6 shows a block diagram 600 of a wireless device 605 that supportsresource splitting among different types of control information anduplink data for a transmission on an uplink shared channel in accordancewith aspects of the present disclosure. Wireless device 605 may be anexample of aspects of a UE 115 as described herein. Wireless device 605may include receiver 610, UE communications manager 615, and transmitter620. Wireless device 605 may also include a processor. Each of thesecomponents may be in communication with one another (e.g., via one ormore buses).

Receiver 610 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel, etc.). Information maybe passed on to other components of the device. The receiver 610 may bean example of aspects of the transceiver 935 described with reference toFIG. 9. The receiver 610 may utilize a single antenna or a set ofantennas.

UE communications manager 615 may be an example of aspects of the UEcommunications manager 915 described with reference to FIG. 9.

UE communications manager 615 and/or at least some of its varioussub-components may be implemented in hardware, software executed by aprocessor, firmware, or any combination thereof. If implemented insoftware executed by a processor, the functions of the UE communicationsmanager 615 and/or at least some of its various sub-components may beexecuted by a general-purpose processor, a digital signal processor(DSP), an application-specific integrated circuit (ASIC), anfield-programmable gate array (FPGA) or other programmable logic device,discrete gate or transistor logic, discrete hardware components, or anycombination thereof designed to perform the functions described in thepresent disclosure. The UE communications manager 615 and/or at leastsome of its various sub-components may be physically located at variouspositions, including being distributed such that portions of functionsare implemented at different physical locations by one or more physicaldevices.

In some examples, UE communications manager 615 and/or at least some ofits various sub-components may be a separate and distinct component inaccordance with various aspects of the present disclosure. In otherexamples, UE communications manager 615 and/or at least some of itsvarious sub-components may be combined with one or more other hardwarecomponents, including but not limited to an I/O component, atransceiver, a network server, another computing device, one or moreother components described in the present disclosure, or a combinationthereof in accordance with various aspects of the present disclosure.

UE communications manager 615 may receive, by a UE, a grant indicating aset of REs of an uplink shared channel allocated to the UE for an uplinktransmission, split at least a portion of the set of REs betweenfeedback data, CSI part 1 data, and CSI part 2 data, generate the uplinktransmission based on the splitting, and transmit, by the UE, the uplinktransmission in the set of REs of the uplink shared channel. In someexamples of the UE communications manager 615, the set of REs may besplit based on a reference payload size of the CSI part 2 data.

Transmitter 620 may transmit signals generated by other components ofthe device. In some examples, the transmitter 620 may be collocated witha receiver 610 in a transceiver module. For example, the transmitter 620may be an example of aspects of the transceiver 935 described withreference to FIG. 9. The transmitter 620 may utilize a single antenna ora set of antennas.

FIG. 7 shows a block diagram 700 of a wireless device 705 that supportsresource splitting among different types of control information anduplink data for a transmission on an uplink shared channel in accordancewith aspects of the present disclosure. Wireless device 705 may be anexample of aspects of a wireless device 605 or a UE 115 as describedwith reference to FIG. 6. Wireless device 705 may include receiver 710,UE communications manager 715, and transmitter 720. Wireless device 705may also include a processor. Each of these components may be incommunication with one another (e.g., via one or more buses).

Receiver 710 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel, etc.). Information maybe passed on to other components of the device. The receiver 710 may bean example of aspects of the transceiver 935 described with reference toFIG. 9. The receiver 710 may utilize a single antenna or a set ofantennas.

UE communications manager 715 may be an example of aspects of the UEcommunications manager 915 described with reference to FIG. 9.

UE communications manager 715 may also include grant component 725,resource allocation component 730, generation component 735, and uplinkcontroller 740.

Grant component 725 may receive, by a UE, a grant indicating a set ofREs of an uplink shared channel allocated to the UE for an uplinktransmission, determine in some examples a reference payload size basedat least on part on a value of a rank indication, process the grant todetermine that none of the set of REs are allocated for transmission ofuplink data and that each of the set of REs is allocated fortransmission of the feedback data, or the CSI part 1 data, or the CSIpart 2 data, and process the grant to determine that the uplinktransmission is to include non-access stratum data and not to includeaccess stratum data.

Resource allocation component 730 may determine a total number of theset of REs that are available for allocation based on a number ofsubcarriers associated with the grant and a number of symbol periodsassociated with in the grant (which is number of subcarriers and numberof symbol periods, in some examples, may be indicated in the grant), andsplit the set of REs between feedback data, CSI part 1 data, and CSIpart 2 data. In some examples, splitting of the plurality of REs mayinclude splitting the plurality of REs between the feedback data, theCSI part 1 data, and the CSI part 2 data. In some examples, thesplitting may be based at least in part on the reference payload size ofthe CSI part 2 data. In some examples, splitting of the plurality of REsmay include splitting the plurality of REs between the feedback data,the CSI part 1 data, the CSI part 2 data, and uplink data. In someexamples, such splitting may be based at least in part on the referencepayload size of the CSI part 2 data. In some cases, the feedback data isHARQ-ACK data.

Resource allocation component 730 may also identify a remaining numberof the set of REs that are available for allocation based on determiningthat the number of the set of REs allocated to the feedback data is lessthan the total number of the set of REs that are available forallocation, split the remaining number of the set of REs between the CSIpart 1 data and the CSI part 2 data, set the total number of the set ofREs that are available for allocation as a maximum number of the set ofREs that are available to allocate to the feedback data.

Resource allocation component 730 may receive control (e.g., RRC)signaling indicating an allocation cap parameter for the feedback data,set a maximum number of the set of REs to allocate to the feedback databased on the allocation cap parameter, where calculating the number ofthe set of REs to allocate to the feedback data is based on the maximumnumber, receive control (e.g., RRC) signaling indicating an allocationcap parameter for the CSI part 1 data, and set a maximum number of theset of REs to allocate to the CSI part 1 data based on the allocationcap parameter. In some cases, calculating the number of the set of REsto allocate to the CSI part 1 data is based on the maximum number. Insome cases, splitting of the set of REs includes: allocating a number ofthe set of REs to the feedback data.

Generation component 735 may generate the uplink transmission based onthe splitting of the set of REs.

Uplink controller 740 may transmit, by the UE, the uplink transmissionin the set of REs of the uplink shared channel.

Transmitter 720 may transmit signals generated by other components ofthe device. In some examples, the transmitter 720 may be collocated witha receiver 710 in a transceiver module. For example, the transmitter 720may be an example of aspects of the transceiver 935 described withreference to FIG. 9. The transmitter 720 may utilize a single antenna ora set of antennas.

FIG. 8 shows a block diagram 800 of a UE communications manager 815 thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure. The UE communicationsmanager 815 may be an example of aspects of a UE communications manager615, a UE communications manager 715, or a UE communications manager 915described with reference to FIGS. 6, 7, and 9. The UE communicationsmanager 815 may include grant component 820, resource allocationcomponent 825, generation component 830, uplink controller 835,calculation component 840, and control information factor component 845.Each of these modules may communicate, directly or indirectly, with oneanother (e.g., via one or more buses).

Grant component 820 may receive, by a UE, a grant indicating a set ofREs of an uplink shared channel allocated to the UE for an uplinktransmission, determine in some examples a reference payload size basedat least on part on a value of a rank indication, process the grant todetermine that none of the set of REs are allocated for transmission ofuplink data and that each of the set of REs is allocated fortransmission of the feedback data, or the CSI part 1 data, or the CSIpart 2 data, and process the grant to determine that the uplinktransmission is to include non-access stratum data and not to includeaccess stratum data.

Resource allocation component 825 may determine a total number of theset of REs that are available for allocation based on a number ofsubcarriers indicated in the grant and a number of symbol periodsindicated in the grant, split at least a portion of the set of REsbetween feedback data, CSI part 1 data, and CSI part 2 data. In someexamples, splitting of the plurality of REs may include splitting theplurality of REs between the feedback data, the CSI part 1 data, and theCSI part 2 data. In some examples, such splitting may be based at leastin part on the reference payload size of the CSI part 2 data. In somecases, the feedback data is HARQ-ACK data. In some examples, splittingof the plurality of REs may include splitting the plurality of REsbetween the feedback data, the CSI part 1 data, the CSI part 2 data, anduplink data. In some examples, such splitting may be based at least inpart on the reference payload size of the CSI part 2 data. In somecases, the feedback data is HARQ-ACK data.

In some cases, resource allocation component 825 may identify aremaining number of the set of REs that are available for allocationbased on determining that the number of the set of REs allocated to thefeedback data is less than the total number of the set of REs that areavailable for allocation, split the remaining number of the set of REsbetween the CSI part 1 data and the CSI part 2 data.

In some cases, resource allocation component 825 may set the totalnumber of the set of REs that are available for allocation as a maximumnumber of the set of REs that are available to allocate to the feedbackdata, receive control (e.g., RRC) signaling indicating an allocation capparameter for the feedback data, set a maximum number of the set of REsto allocate to the feedback data based on the allocation cap parameter,where calculating the number of the set of REs to allocate to thefeedback data is based on the maximum number, receive control (e.g.,RRC) signaling indicating an allocation cap parameter for the CSI part 1data, and set a maximum number of the set of REs to allocate to the CSIpart 1 data based on the allocation cap parameter, where calculating thenumber of the set of REs to allocate to the CSI part 1 data is based onthe maximum number. In some cases, splitting of the set of REs includes:allocating a number of the set of REs to the feedback data.

Generation component 830 may generate the uplink transmission based onthe splitting of the set of REs.

Uplink controller 835 may transmit, by the UE, the uplink transmissionin the set of REs of the uplink shared channel.

Calculation component 840 may calculate a number of the set of REs forallocation. In some cases, splitting of the set of REs includes:calculating a number of the set of REs to allocate to the feedback datain proportion to a weighted payload size of the feedback data relativeto a function of the weighted payload size of the feedback data, aweighted payload size of the CSI part 1 data, and a weighted payloadsize of a reference payload size.

In some cases, splitting of the set of REs includes: calculating anumber of the set of REs to allocate to the CSI part 1 data inproportion to a weighted payload size of the CSI part 1 data relative toa function of a weighted payload size of the feedback data, the weightedpayload size of the CSI part 1 data, and a weighted payload size of areference payload size. Further, calculation component 840 may calculatea number of the set of REs to allocate to the CSI part 2 data based on anumber of the set of REs allocated to the feedback data and a number ofthe set of REs allocated to the CSI part 1 data.

In some cases, splitting of the set of REs includes: calculating anumber of the set of REs to allocate to the feedback data in proportionto a weighted payload size of the feedback data relative to a weightedpayload size of a reference payload size. In some cases, splitting ofthe set of REs includes: calculating a number of the set of REs toallocate to the CSI part 1 data in proportion to a weighted payload sizeof the CSI part 1 data relative to a weighted payload size of areference payload size.

Control information factor component 845 may determine a weightedpayload size of the feedback data based at least on part on theweighting factor for the feedback data, a weighted payload size of theCSI part 1 data based at least on part on the weighting factor for theCSI part 1 data, and a weighted payload size of a reference payload sizebased at least on part on the weighting factor for the CSI part 2 data.In some cases, splitting of the set of REs includes: receiving control(e.g., RRC) signaling indicating a weighting factor for the feedbackdata, a weighting factor for the CSI part 1 data, and a weighting factorfor the CSI part 2 data.

FIG. 9 shows a diagram of a system 900 including a device 905 thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure. Device 905 may be anexample of or include the components of wireless device 605, wirelessdevice 705, or a UE 115 as described above, e.g., with reference toFIGS. 6 and 7. Device 905 may include components for bi-directionalvoice and data communications including components for transmitting andreceiving communications, including UE communications manager 915,processor 920, memory 925, software 930, transceiver 935, antenna 940,and I/O controller 945. These components may be in electroniccommunication via one or more buses (e.g., bus 910). Device 905 maycommunicate wirelessly with one or more base stations 105.

Processor 920 may include an intelligent hardware device, (e.g., ageneral-purpose processor, a DSP, a central processing unit (CPU), amicrocontroller, an ASIC, an FPGA, a programmable logic device, adiscrete gate or transistor logic component, a discrete hardwarecomponent, or any combination thereof). In some cases, processor 920 maybe configured to operate a memory array using a memory controller. Insome cases, a memory controller may be integrated into processor 920.Processor 920 may be configured to execute computer-readableinstructions stored in a memory to perform various functions (e.g.,functions or tasks supporting resource splitting among different typesof control information and uplink data for a transmission on an uplinkshared channel).

Memory 925 may include random access memory (RAM) and read only memory(ROM). The memory 925 may store computer-readable, computer-executablesoftware 930 including instructions that, when executed, cause theprocessor to perform various functions described herein. In some cases,the memory 925 may contain, among other things, a basic input/outputsystem (BIOS) which may control basic hardware or software operationsuch as the interaction with peripheral components or devices.

Software 930 may include code to implement aspects of the presentdisclosure, including code to support resource splitting among differenttypes of control information and uplink data for a transmission on anuplink shared channel. Software 930 may be stored in a non-transitorycomputer-readable medium such as system memory or other memory. In somecases, the software 930 may not be directly executable by the processorbut may cause a computer (e.g., when compiled and executed) to performfunctions described herein.

Transceiver 935 may communicate bi-directionally, via one or moreantennas, wired, or wireless links as described above. For example, thetransceiver 935 may represent a wireless transceiver and may communicatebi-directionally with another wireless transceiver. The transceiver 935may also include a modem to modulate the packets and provide themodulated packets to the antennas for transmission, and to demodulatepackets received from the antennas.

In some cases, the wireless device may include a single antenna 940.However, in some cases the device may have more than one antenna 940,which may be capable of concurrently transmitting or receiving multiplewireless transmissions.

I/O controller 945 may manage input and output signals for device 905.I/O controller 945 may also manage peripherals not integrated intodevice 905. In some cases, I/O controller 945 may represent a physicalconnection or port to an external peripheral. In some cases, I/Ocontroller 945 may utilize an operating system such as iOS®, ANDROID®,MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or another known operatingsystem. In some cases, I/O controller 945 may represent or interact witha modem, a keyboard, a mouse, a touchscreen, or a similar device. Insome cases, I/O controller 945 may be implemented as part of aprocessor. In some cases, a user may interact with device 905 via I/Ocontroller 945 or via hardware components controlled by I/O controller945.

FIG. 10 shows a block diagram 1000 of a wireless device 1005 thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure. Wireless device 1005may be an example of aspects of a base station 105 as described herein.Wireless device 1005 may include receiver 1010, base stationcommunications manager 1015, and transmitter 1020. Wireless device 1005may also include a processor. Each of these components may be incommunication with one another (e.g., via one or more buses).

Receiver 1010 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel, etc.). Information maybe passed on to other components of the device. The receiver 1010 may bean example of aspects of the transceiver 1335 described with referenceto FIG. 13. The receiver 1010 may utilize a single antenna or a set ofantennas.

Base station communications manager 1015 may be an example of aspects ofthe base station communications manager 1315 described with reference toFIG. 13.

Base station communications manager 1015 and/or at least some of itsvarious sub-components may be implemented in hardware, software executedby a processor, firmware, or any combination thereof. If implemented insoftware executed by a processor, the functions of the base stationcommunications manager 1015 and/or at least some of its varioussub-components may be executed by a general-purpose processor, a DSP, anASIC, an FPGA or other programmable logic device, discrete gate ortransistor logic, discrete hardware components, or any combinationthereof designed to perform the functions described in the presentdisclosure. The base station communications manager 1015 and/or at leastsome of its various sub-components may be physically located at variouspositions, including being distributed such that portions of functionsare implemented at different physical locations by one or more physicaldevices.

In some examples, base station communications manager 1015 and/or atleast some of its various sub-components may be a separate and distinctcomponent in accordance with various aspects of the present disclosure.In other examples, base station communications manager 1015 and/or atleast some of its various sub-components may be combined with one ormore other hardware components, including but not limited to an I/Ocomponent, a transceiver, a network server, another computing device,one or more other components described in the present disclosure, or acombination thereof in accordance with various aspects of the presentdisclosure.

Base station communications manager 1015 may transmit, by a basestation, a grant indicating a set of REs of an uplink shared channelallocated to a UE for an uplink transmission, split the set of REsbetween feedback data, CSI part 1 data, and CSI part 2 data, and monitorthe set of REs of the uplink shared channel for the uplink transmissionbased on the splitting of the set of REs. In some examples, splitting ofthe plurality of REs may include splitting the plurality of REs betweenthe feedback data, the CSI part 1 data, and the CSI part 2 data. In someexamples, the splitting may be based at least in part on a referencepayload size of the CSI part 2 data. In some examples, splitting of theplurality of REs may include splitting the plurality of REs between thefeedback data, the CSI part 1 data, the CSI part 2 data, and uplinkdata. In some examples, such splitting may be based at least in part ona reference payload size of the CSI part 2 data.

Transmitter 1020 may transmit signals generated by other components ofthe device. In some examples, the transmitter 1020 may be collocatedwith a receiver 1010 in a transceiver module. For example, thetransmitter 1020 may be an example of aspects of the transceiver 1335described with reference to FIG. 13. The transmitter 1020 may utilize asingle antenna or a set of antennas.

FIG. 11 shows a block diagram 1100 of a wireless device 1105 thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure. Wireless device 1105may be an example of aspects of a wireless device 1005 or a base station105 as described with reference to FIG. 10. Wireless device 1105 mayinclude receiver 1110, base station communications manager 1115, andtransmitter 1120. Wireless device 1105 may also include a processor.Each of these components may be in communication with one another (e.g.,via one or more buses).

Receiver 1110 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel, etc.). Information maybe passed on to other components of the device. The receiver 1110 may bean example of aspects of the transceiver 1335 described with referenceto FIG. 13. The receiver 1110 may utilize a single antenna or a set ofantennas.

Base station communications manager 1115 may be an example of aspects ofthe base station communications manager 1315 described with reference toFIG. 13.

Base station communications manager 1115 may also include grantcomponent 1125, resource allocation component 1130, and resourcemonitoring component 1135.

Grant component 1125 may transmit, by a base station, a grant indicatinga set of REs of an uplink shared channel allocated to a UE for an uplinktransmission. In some cases, transmitting the grant further includes:generating the grant to indicate that none of the total number of theset of REs are allocated for transmission of uplink data and that eachof total number of the set of REs is allocated for transmission of thefeedback data, the CSI part 1 data, or the CSI part 2 data. In somecases, transmitting the grant further includes: generating the grant toindicate that the uplink transmission is to include non-access stratumdata and not to include access stratum data.

Resource allocation component 1130 may split at least a portion of theset of REs between feedback data, CSI part 1 data, and CSI part 2 data,determine a total number of the set of REs that are available forallocation based on a number of subcarriers indicated in the grant and anumber of symbol periods indicated in the grant, and in some examplesdetermine a reference payload size based at least on part on a value ofa rank indication. In some cases, splitting of the set of REs includes:splitting the set of REs between the feedback data, the CSI part 1 data,and the CSI part 2 data. In some examples, such splitting may be basedon the reference payload size of the CSI part 2 data. In some cases,splitting of the set of REs includes: splitting the set of REs betweenthe feedback data, the CSI part 1 data, and the CSI part 2 data. In someexamples, such splitting may be based on the total number of the set ofREs that are available for allocation.

In some cases, the total number of the set of REs that are available forallocation excludes REs of the set of REs assigned to at least onereference signal. In some examples, splitting of at least a portion ofthe plurality of REs may include splitting the plurality of REs betweenthe feedback data, the CSI part 1 data, the CSI part 2 data, and uplinkdata. In some examples, such splitting may be based at least in part ona reference payload size of the CSI part 2 data. In some cases, thefeedback data is HARQ-ACK data.

Resource monitoring component 1135 may monitor the set of REs of theuplink shared channel for the uplink transmission based on the splittingof the set of REs.

Transmitter 1120 may transmit signals generated by other components ofthe device. In some examples, the transmitter 1120 may be collocatedwith a receiver 1110 in a transceiver module. For example, thetransmitter 1120 may be an example of aspects of the transceiver 1335described with reference to FIG. 13. The transmitter 1120 may utilize asingle antenna or a set of antennas.

FIG. 12 shows a block diagram 1200 of a base station communicationsmanager 1215 that supports resource splitting among different types ofcontrol information and uplink data for a transmission on an uplinkshared channel in accordance with aspects of the present disclosure. Thebase station communications manager 1215 may be an example of aspects ofa base station communications manager 1315 described with reference toFIGS. 10, 11, and 13. The base station communications manager 1215 mayinclude grant component 1220, resource allocation component 1225,resource monitoring component 1230, calculation component 1235, andcontrol (e.g., RRC) signaling component 1240. Each of these modules maycommunicate, directly or indirectly, with one another (e.g., via one ormore buses).

Grant component 1220 may transmit, by a base station, a grant indicatinga set of REs of an uplink shared channel allocated to a UE for an uplinktransmission. In some cases, transmitting the grant further includes:generating the grant to indicate that none of the total number of theset of REs are allocated for transmission of uplink data and that eachof total number of the set of REs is allocated for transmission of thefeedback data, the CSI part 1 data, or the CSI part 2 data. In somecases, transmitting the grant further includes: generating the grant toindicate that the uplink transmission is to include non-access stratumdata and not to include access stratum data.

Resource allocation component 1225 may split at least a portion of theset of REs between feedback data, CSI part 1 data, and CSI part 2 data,determine a total number of the set of REs that are available forallocation based on a number of subcarriers indicated in the grant and anumber of symbol periods indicated in the grant, and determine thereference payload size based at least on part on a value of a rankindication. In some examples, splitting of the plurality of REs mayinclude splitting the plurality of REs between the feedback data, theCSI part 1 data, and the CSI part 2 data, based at least in part on thereference payload size of the CSI part 2 data. In some cases, splittingof the set of REs includes: splitting the set of REs between thefeedback data, the CSI part 1 data, and the CSI part 2 data based on thetotal number of the set of REs that are available for allocation.

In some cases, the total number of the set of REs that are available forallocation excludes REs of the set of REs assigned to at least onereference signal. In some examples, splitting of at least a portion ofthe plurality of REs may include splitting the plurality of REs betweenthe feedback data, the CSI part 1 data, the CSI part 2 data, and uplinkdata. In some examples, the splitting may be based at least in part onthe reference payload size of the CSI part 2 data. In some cases, thefeedback data is HARQ-ACK data.

Resource monitoring component 1230 may monitor the set of REs of theuplink shared channel for the uplink transmission based on the splittingof the set of REs.

Calculation component 1235 may calculate a number of the set of REsallocated to the CSI part 1 data based on the maximum number of the setof REs available to allocate to the CSI part 1 data. In some cases,splitting of the set of REs includes: calculating a number of the set ofREs allocated to the feedback data in proportion to a weighted payloadsize of the feedback data relative to a function of the weighted payloadsize of the feedback data, a weighted payload size of the CSI part 1data, and a weighted payload size of a reference payload size.

In some cases, splitting of the set of REs includes: calculating anumber of the set of REs allocated to the CSI part 1 data in proportionto a weighted payload size of the CSI part 1 data relative to a functionof a weighted payload size of the feedback data, the weighted payloadsize of the CSI part 1 data, and a weighted payload size of a referencepayload size. In some cases, splitting of the set of REs includes:calculating a number of the set of REs allocated to the CSI part 2 databased on a number of the set of REs allocated to the feedback data and anumber of the set of REs allocated to the CSI part 1 data. In somecases, splitting of the set of REs includes: calculating a number of theset of REs allocated to the feedback data based on the maximum number ofthe set of REs available to allocate to the feedback data.

Control (e.g., RRC) signaling component 1240 may determine a weightedpayload size of the feedback data based at least on part on theweighting factor for the feedback data, a weighted payload size of theCSI part 1 data based at least on part on the weighting factor for theCSI part 1 data, and a weighted payload size of a reference payload sizebased at least on part on the weighting factor for the CSI part 2 data,transmit control (e.g., RRC) signaling indicating a first allocation capparameter for the feedback data and for the CSI part 1 data, and set amaximum number of the set of REs available to allocate to the CSI part 1data based at least in part on the first allocation cap parameter.

In some cases, splitting of the set of REs includes: transmittingcontrol (e.g., RRC) signaling indicating a weighting factor for thefeedback data, a weighting factor for the CSI part 1 data, and aweighting factor for the CSI part 2 data. In some cases, splitting ofthe set of REs includes: setting a maximum number of the set of REsavailable to allocate to the feedback data based on the first allocationcap parameter.

FIG. 13 shows a diagram of a system 1300 including a device 1305 thatsupports resource splitting among different types of control informationand uplink data for a transmission on an uplink shared channel inaccordance with aspects of the present disclosure. Device 1305 may be anexample of or include the components of base station 105 as describedabove, e.g., with reference to FIG. 1. Device 1305 may includecomponents for bi-directional voice and data communications includingcomponents for transmitting and receiving communications, including basestation communications manager 1315, processor 1320, memory 1325,software 1330, transceiver 1335, antenna 1340, network communicationsmanager 1345, and inter-station communications manager 1350. Thesecomponents may be in electronic communication via one or more buses(e.g., bus 1310). Device 1305 may communicate wirelessly with one ormore UEs 115.

Processor 1320 may include an intelligent hardware device, (e.g., ageneral-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, anFPGA, a programmable logic device, a discrete gate or transistor logiccomponent, a discrete hardware component, or any combination thereof).In some cases, processor 1320 may be configured to operate a memoryarray using a memory controller. In some cases, a memory controller maybe integrated into processor 1320. Processor 1320 may be configured toexecute computer-readable instructions stored in a memory to performvarious functions (e.g., functions or tasks supporting resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel).

Memory 1325 may include RAM and ROM. The memory 1325 may storecomputer-readable, computer-executable software 1330 includinginstructions that, when executed, cause the processor to perform variousfunctions described herein. In some cases, the memory 1325 may contain,among other things, a BIOS which may control basic hardware or softwareoperation such as the interaction with peripheral components or devices.

Software 1330 may include code to implement aspects of the presentdisclosure, including code to support resource splitting among differenttypes of control information and uplink data for a transmission on anuplink shared channel. Software 1330 may be stored in a non-transitorycomputer-readable medium such as system memory or other memory. In somecases, the software 1330 may not be directly executable by the processorbut may cause a computer (e.g., when compiled and executed) to performfunctions described herein.

Transceiver 1335 may communicate bi-directionally, via one or moreantennas, wired, or wireless links as described above. For example, thetransceiver 1335 may represent a wireless transceiver and maycommunicate bi-directionally with another wireless transceiver. Thetransceiver 1335 may also include a modem to modulate the packets andprovide the modulated packets to the antennas for transmission, and todemodulate packets received from the antennas.

In some cases, the wireless device may include a single antenna 1340.However, in some cases the device may have more than one antenna 1340,which may be capable of concurrently transmitting or receiving multiplewireless transmissions.

Network communications manager 1345 may manage communications with thecore network (e.g., via one or more wired backhaul links). For example,the network communications manager 1345 may manage the transfer of datacommunications for client devices, such as one or more UEs 115.

Inter-station communications manager 1350 may manage communications withother base station 105, and may include a controller or scheduler forcontrolling communications with UEs 115 in cooperation with other basestations 105. For example, the inter-station communications manager 1350may coordinate scheduling for transmissions to UEs 115 for variousinterference mitigation techniques such as beamforming or jointtransmission. In some examples, inter-station communications manager1350 may provide an X2 interface within an LTE/LTE-A wirelesscommunication network technology to provide communication between basestations 105.

FIG. 14 shows a flowchart illustrating a method 1400 for resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure. The operations of method 1400 may beimplemented by a UE 115 or its components as described herein. Forexample, the operations of method 1400 may be performed by a UEcommunications manager as described with reference to FIGS. 6 through 9.In some examples, a UE 115 may execute a set of codes to control thefunctional elements of the device to perform the functions describedbelow. Additionally or alternatively, the UE 115 may perform aspects ofthe functions described below using special-purpose hardware.

At 1405 the UE 115 may receive a grant indicating a plurality of REs ofan uplink shared channel allocated to the UE for an uplink transmission.The operations of 1405 may be performed according to the methodsdescribed herein. In certain examples, aspects of the operations of 1405may be performed by a grant component as described with reference toFIGS. 6 through 9.

At 1410 the UE 115 may split at least a portion of the plurality of REsbetween feedback data (e.g., HARK-ACK data), CSI part 1 data, and CSIpart 2 data. In some examples, splitting of the plurality of REs of 1410may include splitting the plurality of REs between the feedback data(e.g., HARQ-ACK data), the CSI part 1 data, and the CSI part 2 data. Insome examples, splitting of the plurality of REs of 1410 may includesplitting the plurality of REs between the feedback data (e.g., HARQ-ACKdata), the CSI part 1 data, the CSI part 2 data, and uplink data. Insome examples, the splitting may be based at least in part on thereference payload size of the CSI part 2 data. The operations of 1410may be performed according to the methods described herein. In certainexamples, aspects of the operations of 1410 may be performed by aresource allocation component as described with reference to FIGS. 6through 9.

At 1415 the UE 115 may generate the uplink transmission based at leastin part on the splitting. The operations of 1415 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of 1415 may be performed by a generation component asdescribed with reference to FIGS. 6 through 9.

At 1420 the UE 115 may transmit, by the UE, the uplink transmission inthe plurality of REs of the uplink shared channel. The operations of1420 may be performed according to the methods described herein. Incertain examples, aspects of the operations of 1420 may be performed byan uplink controller as described with reference to FIGS. 6 through 9.

FIG. 15 shows a flowchart illustrating a method 1500 for resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure. The operations of method 1500 may beimplemented by a UE 115 or its components as described herein. Forexample, the operations of method 1500 may be performed by a UEcommunications manager as described with reference to FIGS. 6 through 9.In some examples, a UE 115 may execute a set of codes to control thefunctional elements of the device to perform the functions describedbelow. Additionally or alternatively, the UE 115 may perform aspects ofthe functions described below using special-purpose hardware.

At 1505 the UE 115 may receive a grant indicating a plurality of REs ofan uplink shared channel allocated to the UE for an uplink transmission.The operations of 1505 may be performed according to the methodsdescribed herein. In certain examples, aspects of the operations of 1505may be performed by a grant component as described with reference toFIGS. 6 through 9.

At 1510 the UE 115 may determine a total number of the plurality of REsthat are available for allocation based at least in part on a number ofsubcarriers indicated in the grant and a number of symbol periodsindicated in the grant. The operations of 1510 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of 1510 may be performed by a resource allocationcomponent as described with reference to FIGS. 6 through 9.

At 1515 the UE 115 may split at least a portion of the plurality of REsbetween HARQ-ACK data, CSI part 1 data, and CSI part 2 data. In someexamples the splitting of 1515 may be based at least in part on areference payload size of the CSI part 2 data. In some examples thesplitting of 1515 may be between HARQ-ACK data, CSI part 1 data, CSIpart 2 data, and uplink data. The operations of 1515 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of 1515 may be performed by a resource allocationcomponent as described with reference to FIGS. 6 through 9.

At 1520 the UE 115 may generate the uplink transmission based at leastin part on the splitting. The operations of 1520 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of 1520 may be performed by a generation component asdescribed with reference to FIGS. 6 through 9.

At 1525 the UE 115 may transmit, by the UE, the uplink transmission inthe plurality of REs of the uplink shared channel. The operations of1525 may be performed according to the methods described herein. Incertain examples, aspects of the operations of 1525 may be performed byan uplink controller as described with reference to FIGS. 6 through 9.

FIG. 16 shows a flowchart illustrating a method 1600 for resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure. The operations of method 1600 may beimplemented by a base station 105 or its components as described herein.For example, the operations of method 1600 may be performed by a basestation communications manager as described with reference to FIGS. 10through 13. In some examples, a base station 105 may execute a set ofcodes to control the functional elements of the device to perform thefunctions described below. Additionally or alternatively, the basestation 105 may perform aspects of the functions described below usingspecial-purpose hardware.

At 1605 the base station 105 may transmit a grant indicating a pluralityof REs of an uplink shared channel allocated to a UE for an uplinktransmission. The operations of 1605 may be performed according to themethods described herein. In certain examples, aspects of the operationsof 1605 may be performed by a grant component as described withreference to FIGS. 10 through 13.

At 1610 the base station 105 may split at least a portion of theplurality of REs between feedback data (e.g., HARQ-ACK data), CSI part 1data, and CSI part 2 data. In some examples, the splitting of 1610 maybe based at least in part on a reference payload size of the CSI part 2data. In some examples, the splitting of 1610 may be between feedbackdata (e.g., HARQ-ACK data), CSI part 1 data, CSI part 2 data, and uplinkdata. The operations of 1610 may be performed according to the methodsdescribed herein. In certain examples, aspects of the operations of 1610may be performed by a resource allocation component as described withreference to FIGS. 10 through 13.

At 1615 the base station 105 may monitor the plurality of REs of theuplink shared channel for the uplink transmission based at least in parton the splitting. The operations of 1615 may be performed according tothe methods described herein. In certain examples, aspects of theoperations of 1615 may be performed by a resource monitoring componentas described with reference to FIGS. 10 through 13.

FIG. 17 shows a flowchart illustrating a method 1700 for resourcesplitting among different types of control information and uplink datafor a transmission on an uplink shared channel in accordance withaspects of the present disclosure. The operations of method 1700 may beimplemented by a base station 105 or its components as described herein.For example, the operations of method 1700 may be performed by a basestation communications manager as described with reference to FIGS. 10through 13. In some examples, a base station 105 may execute a set ofcodes to control the functional elements of the device to perform thefunctions described below. Additionally or alternatively, the basestation 105 may perform aspects of the functions described below usingspecial-purpose hardware.

At 1705 the base station 105 may transmit a grant indicating a pluralityof REs of an uplink shared channel allocated to a UE for an uplinktransmission. The operations of 1705 may be performed according to themethods described herein. In certain examples, aspects of the operationsof 1705 may be performed by a grant component as described withreference to FIGS. 10 through 13.

At 1710 the base station 105 may transmit control (e.g., RRC) signalingindicating a weighting factor for HARQ-ACK data, CSI part 1 data, andCSI part 2 data. The operations of 1720 may be performed according tothe methods described herein. In certain examples, aspects of theoperations of 1720 may be performed by a control (e.g., RRC) signalingcomponent as described with reference to FIGS. 10 through 13.

At 1715 the base station 105 may split at least a portion of theplurality of REs between feedback data, CSI part 1 data, and CSI part 2data. In some examples the splitting of 1715 may be based at least inpart on a reference payload size of the CSI part 2 data. In some cases,splitting of the plurality of REs includes: transmitting control (e.g.,RRC) signaling indicating a weighting factor for the feedback data, aweighting factor for the CSI part 1 data, and a weighting factor for theCSI part 2 data. In some examples the splitting of 1715 may be betweenfeedback data, CSI part 1 data, CSI part 2 data, and uplink data. Theoperations of 1710 may be performed according to the methods describedherein. In certain examples, aspects of the operations of 1710 may beperformed by a resource allocation component as described with referenceto FIGS. 10 through 13.

At 1720 the base station 105 may monitor the plurality of REs of theuplink shared channel for the uplink transmission based at least in parton the splitting. The operations of 1715 may be performed according tothe methods described herein. In certain examples, aspects of theoperations of 1715 may be performed by a resource monitoring componentas described with reference to FIGS. 10 through 13.

It should be noted that the methods described above describe possibleimplementations, and that the operations and the steps may be rearrangedor otherwise modified and that other implementations are possible.Further, aspects from two or more of the methods may be combined.

Techniques described herein may be used for various wirelesscommunications systems such as CDMA, TDMA, FDMA, OFDMA, single carrierfrequency division multiple access (SC-FDMA), and other systems. A CDMAsystem may implement a radio technology such as CDMA2000, UniversalTerrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95,and IS-856 standards. IS-2000 Releases may be commonly referred to asCDMA2000 1×, 1×, etc. IS-856 (TIA-856) is commonly referred to asCDMA2000 1×EV-DO, High Rate Packet Data (HRPD), etc. UTRA includesWideband CDMA (WCDMA) and other variants of CDMA. A TDMA system mayimplement a radio technology such as Global System for MobileCommunications (GSM).

An OFDMA system may implement a radio technology such as Ultra MobileBroadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical andElectronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal MobileTelecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are releasesof UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR,and GSM are described in documents from the organization named “3rdGeneration Partnership Project” (3GPP). CDMA2000 and UMB are describedin documents from an organization named “3rd Generation PartnershipProject 2” (3GPP2). The techniques described herein may be used for thesystems and radio technologies mentioned above as well as other systemsand radio technologies. While aspects of an LTE, LTE-A, LTE-A Pro, or NRsystem may be described for purposes of example, and LTE, LTE-A, LTE-APro, or NR terminology may be used in much of the description, thetechniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro,or NR applications.

A macro cell generally covers a relatively large geographic area (e.g.,several kilometers in radius) and may allow unrestricted access by UEs115 with service subscriptions with the network provider. A small cellmay be associated with a lower-powered base station 105, as comparedwith a macro cell, and a small cell may operate in the same or different(e.g., licensed, unlicensed, etc.) frequency bands as macro cells. Smallcells may include pico cells, femto cells, and micro cells according tovarious examples. A pico cell, for example, may cover a small geographicarea and may allow unrestricted access by UEs 115 with servicesubscriptions with the network provider. A femto cell may also cover asmall geographic area (e.g., a home) and may provide restricted accessby UEs 115 having an association with the femto cell (e.g., UEs 115 in aclosed subscriber group (CSG), UEs 115 for users in the home, and thelike). An eNB for a macro cell may be referred to as a macro eNB. An eNBfor a small cell may be referred to as a small cell eNB, a pico eNB, afemto eNB, or a home eNB. An eNB may support one or multiple (e.g., two,three, four, and the like) cells, and may also support communicationsusing one or multiple component carriers.

The wireless communications system 100 or systems described herein maysupport synchronous or asynchronous operation. For synchronousoperation, the base stations 105 may have similar frame timing, andtransmissions from different base stations 105 may be approximatelyaligned in time. For asynchronous operation, the base stations 105 mayhave different frame timing, and transmissions from different basestations 105 may not be aligned in time. The techniques described hereinmay be used for either synchronous or asynchronous operations.

Information and signals described herein may be represented using any ofa variety of different technologies and techniques. For example, data,instructions, commands, information, signals, bits, symbols, and chipsthat may be referenced throughout the above description may berepresented by voltages, currents, electromagnetic waves, magneticfields or particles, optical fields or particles, or any combinationthereof.

The various illustrative blocks and modules described in connection withthe disclosure herein may be implemented or performed with ageneral-purpose processor, a DSP, an ASIC, a FPGA or other programmablelogic device (PLD), discrete gate or transistor logic, discrete hardwarecomponents, or any combination thereof designed to perform the functionsdescribed herein. A general-purpose processor may be a microprocessor,but in the alternative, the processor may be any conventional processor,controller, microcontroller, or state machine. A processor may also beimplemented as a combination of computing devices (e.g., a combinationof a DSP and a microprocessor, multiple microprocessors, one or moremicroprocessors in conjunction with a DSP core, or any other suchconfiguration).

The functions described herein may be implemented in hardware, softwareexecuted by a processor, firmware, or any combination thereof. Ifimplemented in software executed by a processor, the functions may bestored on or transmitted over as one or more instructions or code on acomputer-readable medium. Other examples and implementations are withinthe scope of the disclosure and appended claims. For example, due to thenature of software, functions described above can be implemented usingsoftware executed by a processor, hardware, firmware, hardwiring, orcombinations of any of these. Features implementing functions may alsobe physically located at various positions, including being distributedsuch that portions of functions are implemented at different physicallocations.

Computer-readable media includes both non-transitory computer storagemedia and communication media including any medium that facilitatestransfer of a computer program from one place to another. Anon-transitory storage medium may be any available medium that can beaccessed by a general purpose or special purpose computer. By way ofexample, and not limitation, non-transitory computer-readable media mayinclude RAM, ROM, electrically erasable programmable read only memory(EEPROM), flash memory, compact disk (CD) ROM or other optical diskstorage, magnetic disk storage or other magnetic storage devices, or anyother non-transitory medium that can be used to carry or store desiredprogram code means in the form of instructions or data structures andthat can be accessed by a general-purpose or special-purpose computer,or a general-purpose or special-purpose processor. Also, any connectionis properly termed a computer-readable medium. For example, if thesoftware is transmitted from a website, server, or other remote sourceusing a coaxial cable, fiber optic cable, twisted pair, digitalsubscriber line (DSL), or wireless technologies such as infrared, radio,and microwave, then the coaxial cable, fiber optic cable, twisted pair,DSL, or wireless technologies such as infrared, radio, and microwave areincluded in the definition of medium. Disk and disc, as used herein,include CD, laser disc, optical disc, digital versatile disc (DVD),floppy disk and Blu-ray disc where disks usually reproduce datamagnetically, while discs reproduce data optically with lasers.Combinations of the above are also included within the scope ofcomputer-readable media.

As used herein, including in the claims, “or” as used in a list of items(e.g., a list of items prefaced by a phrase such as “at least one of” or“one or more of”) indicates an inclusive list such that, for example, alist of at least one of A, B, or C means A or B or C or AB or AC or BCor ABC (i.e., A and B and C). Also, as used herein, the phrase “basedon” shall not be construed as a reference to a closed set of conditions.For example, an exemplary step that is described as “based on conditionA” may be based on both a condition A and a condition B withoutdeparting from the scope of the present disclosure. In other words, asused herein, the phrase “based on” shall be construed in the same manneras the phrase “based at least in part on.”

In the appended figures, similar components or features may have thesame reference label. Further, various components of the same type maybe distinguished by following the reference label by a dash and a secondlabel that distinguishes among the similar components. If just the firstreference label is used in the specification, the description isapplicable to any one of the similar components having the same firstreference label irrespective of the second reference label, or othersubsequent reference label.

The description set forth herein, in connection with the appendeddrawings, describes example configurations and does not represent allthe examples that may be implemented or that are within the scope of theclaims. The term “exemplary” used herein means “serving as an example,instance, or illustration,” and not “preferred” or “advantageous overother examples.” The detailed description includes specific details forthe purpose of providing an understanding of the described techniques.These techniques, however, may be practiced without these specificdetails. In some instances, well-known structures and devices are shownin block diagram form in order to avoid obscuring the concepts of thedescribed examples.

The description herein is provided to enable a person skilled in the artto make or use the disclosure. Various modifications to the disclosurewill be readily apparent to those skilled in the art, and the genericprinciples defined herein may be applied to other variations withoutdeparting from the scope of the disclosure. Thus, the disclosure is notlimited to the examples and designs described herein, but is to beaccorded the broadest scope consistent with the principles and novelfeatures disclosed herein.

What is claimed is:
 1. A method for wireless communication, comprising:receiving, by a user equipment (UE), a grant indicating a plurality ofresource elements (REs) of an uplink shared channel allocated to the UEfor an uplink transmission; computing a total number of the plurality ofREs that are available for allocation in accordance with a number ofsubcarriers associated with the grant and a number of symbol periodsassociated with the grant; allocating a number of the plurality of REsto hybrid automatic repeat request acknowledgement (HARQ-ACK) data;computing a remaining number of the plurality of REs that are availablefor allocation in accordance with the number of the plurality of REsallocated to the HARQ-ACK data being less than the total number of theplurality of REs that are available for allocation; splitting theremaining number of the plurality of REs between channel stateinformation part 1 (CSI part 1) data, and CSI part 2 data; generatingthe uplink transmission in accordance with the splitting; andtransmitting, by the UE, the uplink transmission in the plurality of REsof the uplink shared channel.
 2. The method of claim 1, furthercomprising: receiving radio resource control (RRC) signaling indicatingan allocation cap parameter; and setting a maximum number of theplurality of REs to allocate to the HARQ-ACK data in accordance with theallocation cap parameter.
 3. The method of claim 2, further comprising:calculating the number of the plurality of REs to allocate to theHARQ-ACK data in accordance with the maximum number.
 4. The method ofclaim 1, further comprising: receiving radio resource control (RRC)signaling indicating an allocation cap parameter; and setting a maximumnumber of the plurality of REs to allocate to the CSI part 1 data inaccordance with the allocation cap parameter.
 5. The method of claim 4,further comprising: calculating a number of the plurality of REs toallocate to the CSI part 1 data in accordance with the maximum number.6. The method of claim 1, further comprising: setting the total numberof the plurality of REs that are available for allocation as a maximumnumber of the plurality of REs that are available to allocate to theHARQ-ACK data.
 7. The method of claim 1, wherein allocating the numberof the plurality of REs to the HARQ-ACK data comprises: calculating thenumber of the plurality of REs to allocate to the HARQ-ACK data inproportion to a weighted payload size of the HARQ-ACK data relative to afunction of the weighted payload size of the HARQ-ACK data, a weightedpayload size of the CSI part 1 data, and a weighted payload size of areference payload size.
 8. The method of claim 1, wherein splitting theremaining number of the plurality of REs comprises: calculating a numberof the plurality of REs to allocate to the CSI part 1 data in proportionto a weighted payload size of the CSI part 1 data relative to a functionof a weighted payload size of the HARQ-ACK data, the weighted payloadsize of the CSI part 1 data, and a weighted payload size of a referencepayload size.
 9. The method of claim 1, wherein splitting the remainingnumber of the plurality of REs comprises: receiving radio resourcecontrol (RRC) signaling indicating a weighting factor for the HARQ-ACKdata, a weighting factor for the CSI part 1 data, and a weighting factorfor the CSI part 2 data; and computing a weighted payload size of theHARQ-ACK data in accordance with the weighting factor for the HARQ-ACKdata, a weighted payload size of the CSI part 1 data computed accordingto the weighting factor for the CSI part 1 data, and a weighted payloadsize of a reference payload size computed according to the weightingfactor for the CSI part 2 data.
 10. The method of claim 1, whereinsplitting the remaining number of the plurality of REs comprises:calculating a number of the plurality of REs to allocate to the CSI part2 data in accordance with the number of the plurality of REs allocatedto the HARQ-ACK data and a number of the plurality of REs allocated tothe CSI part 1 data.
 11. The method of claim 1, wherein allocating thenumber of the plurality of REs to the HARQ-ACK data comprises:calculating the number of the plurality of REs to allocate to theHARQ-ACK data in proportion to a weighted payload size of the HARQ-ACKdata relative to a weighted payload size of a reference payload size.12. The method of claim 1, wherein splitting the remaining number of theplurality of REs comprises: calculating a number of the plurality of REsto allocate to the CSI part 1 data in proportion to a weighted payloadsize of the CSI part 1 data relative to a weighted payload size of areference payload size.
 13. The method of claim 1, further comprising:computing a reference payload size in accordance with a value of a rankindication.
 14. The method of claim 1, further comprising: processingthe grant to determine that none of the plurality of REs are allocatedfor transmission of uplink data and that each of the plurality of REs isallocated for transmission of the HARQ-ACK data, or the CSI part 1 data,or the CSI part 2 data.
 15. The method of claim 1, further comprising:processing the grant to determine that the uplink transmission is toinclude non-access stratum data and not to include access stratum data.16. The method of claim 1, wherein splitting the remaining number of theplurality of REs comprises: splitting the remaining number of theplurality of REs between the CSI part 1 data, the CSI part 2 data, anduplink data in accordance with a reference payload size of the CSI part2 data.
 17. An apparatus for wireless communication, comprising: aprocessor, memory coupled with the processor; and instructions stored inthe memory and executable by the processor to cause the apparatus to:receive, by a user equipment (UE), a grant indicating a plurality ofresource elements (REs) of an uplink shared channel allocated to the UEfor an uplink transmission; compute a total number of the plurality ofREs that are available for allocation in accordance with a number ofsubcarriers associated with the grant and a number of symbol periodsassociated with the grant; allocate a number of the plurality of REs tohybrid automatic repeat request acknowledgement (HARQ-ACK) data; computea remaining number of the plurality of REs that are available forallocation in accordance with the number of the plurality of REsallocated to the HARQ-ACK data being less than the total number of theplurality of REs that are available for allocation; split the remainingnumber of the plurality of REs between channel state information part 1(CSI part 1) data, and CSI part 2 data; generate the uplink transmissionin accordance with the splitting; and transmit, by the UE, the uplinktransmission in the plurality of REs of the uplink shared channel. 18.The apparatus of claim 17, wherein the instructions are furtherexecutable by the processor to cause the apparatus to: receive radioresource control (RRC) signaling indicating an allocation cap parameter;and set a maximum number of the plurality of REs to allocate to theHARQ-ACK data in accordance with the allocation cap parameter.
 19. Theapparatus of claim 18, wherein the instructions are further executableby the processor to cause the apparatus to: calculate the number of theplurality of REs to allocate to the HARQ-ACK data in accordance with themaximum number.
 20. The apparatus of claim 17, wherein the instructionsare further executable by the processor to cause the apparatus to:receive radio resource control (RRC) signaling indicating an allocationcap parameter; and set a maximum number of the plurality of REs toallocate to the CSI part 1 data in accordance with the allocation capparameter.
 21. The apparatus of claim 20, wherein the instructions arefurther executable by the processor to cause the apparatus to: calculatea number of the plurality of REs to allocate to the CSI part 1 data inaccordance with the maximum number.
 22. The apparatus of claim 17,wherein the instructions are further executable by the processor tocause the apparatus to: set the total number of the plurality of REsthat are available for allocation as a maximum number of the pluralityof REs that are available to allocate to the HARQ-ACK data.
 23. Theapparatus of claim 17, wherein the instructions to allocate the numberof the plurality of REs to the HARQ-ACK data are executable by theprocessor to cause the apparatus to: calculate the number of theplurality of REs to allocate to the HARQ-ACK data in proportion to aweighted payload size of the HARQ-ACK data relative to a function of theweighted payload size of the HARQ-ACK data, a weighted payload size ofthe CSI part 1 data, and a weighted payload size of a reference payloadsize.
 24. The apparatus of claim 17, wherein the instructions to splitthe remaining number of the plurality of REs are executable by theprocessor to cause the apparatus to: calculate a number of the pluralityof REs to allocate to the CSI part 1 data in proportion to a weightedpayload size of the CSI part 1 data relative to a function of a weightedpayload size of the HARQ-ACK data, the weighted payload size of the CSIpart 1 data, and a weighted payload size of a reference payload size.25. The apparatus of claim 17, wherein the instructions to split theremaining number of the plurality of REs are executable by the processorto cause the apparatus to: receive radio resource control (RRC)signaling indicating a weighting factor for the HARQ-ACK data, aweighting factor for the CSI part 1 data, and a weighting factor for theCSI part 2 data; and compute a weighted payload size of the HARQ-ACKdata in accordance with the weighting factor for the HARQ-ACK data, aweighted payload size of the CSI part 1 data computed according to theweighting factor for the CSI part 1 data, and a weighted payload size ofa reference payload size computed according to the weighting factor forthe CSI part 2 data.
 26. The apparatus of claim 17, wherein theinstructions to split the remaining number of the plurality of REs areexecutable by the processor to cause the apparatus to: calculate anumber of the plurality of REs to allocate to the CSI part 2 data inaccordance with the number of the plurality of REs allocated to theHARQ-ACK data and a number of the plurality of REs allocated to the CSIpart 1 data.
 27. The apparatus of claim 17, wherein the instructions toallocate the number of the plurality of REs to the HARQ-ACK data areexecutable by the processor to cause the apparatus to: calculate thenumber of the plurality of REs to allocate to the HARQ-ACK data inproportion to a weighted payload size of the HARQ-ACK data relative to aweighted payload size of a reference payload size.
 28. The apparatus ofclaim 17, wherein the instructions to split the remaining number of theplurality of REs are executable by the processor to cause the apparatusto: calculate a number of the plurality of REs to allocate to the CSIpart 1 data in proportion to a weighted payload size of the CSI part 1data relative to a weighted payload size of a reference payload size.29. An apparatus for wireless communication, comprising: means forreceiving, by a user equipment (UE), a grant indicating a plurality ofresource elements (REs) of an uplink shared channel allocated to the UEfor an uplink transmission; means for computing a total number of theplurality of REs that are available for allocation in accordance with anumber of subcarriers associated with the grant and a number of symbolperiods associated with the grant; means for allocating a number of theplurality of REs to hybrid automatic repeat request acknowledgement(HARQ-ACK) data; means for computing a remaining number of the pluralityof REs that are available for allocation in accordance with the numberof the plurality of REs allocated to the HARQ-ACK data being less thanthe total number of the plurality of REs that are available forallocation; means for splitting the remaining number of the plurality ofREs between channel state information part 1 (CSI part 1) data, and CSIpart 2 data; means for generating the uplink transmission in accordancewith the splitting; and means for transmitting, by the UE, the uplinktransmission in the plurality of REs of the uplink shared channel.
 30. Anon-transitory computer-readable medium storing code for wirelesscommunication, the code comprising instructions executable by aprocessor to: receive, by a user equipment (UE), a grant indicating aplurality of resource elements (REs) of an uplink shared channelallocated to the UE for an uplink transmission; compute a total numberof the plurality of REs that are available for allocation in accordancewith a number of subcarriers associated with the grant and a number ofsymbol periods associated with the grant; allocate a number of theplurality of REs to hybrid automatic repeat request acknowledgement(HARQ-ACK) data; compute a remaining number of the plurality of REs thatare available for allocation in accordance with the number of theplurality of REs allocated to the HARQ-ACK data being less than thetotal number of the plurality of REs that are available for allocation;split the remaining number of the plurality of REs between channel stateinformation part 1 (CSI part 1) data, and CSI part 2 data; generate theuplink transmission in accordance with the splitting; and transmit, bythe UE, the uplink transmission in the plurality of REs of the uplinkshared channel.